Release v0.0.4 (#26)

Cargo.lock

@@ -54,9 +54,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.67"
+version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7724808837b77f4b4de9d283820f9d98bcf496d5692934b857a2399d31ff22e6"
+checksum = "2cb2f989d18dd141ab8ae82f64d1a8cdd37e0840f73a406896cf5e99502fab61"
 
 [[package]]
 name = "anymap2"
@@ -124,9 +124,9 @@ dependencies = [
 
 [[package]]
 name = "async-trait"
-version = "0.1.60"
+version = "0.1.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d1d8ab452a3936018a687b20e6f7cf5363d713b732b8884001317b0e48aa3"
+checksum = "eff18d764974428cf3a9328e23fc5c986f5fbed46e6cd4cdf42544df5d297ec1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -168,6 +168,12 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
+
 [[package]]
 name = "base64ct"
 version = "1.5.3"
@@ -223,9 +229,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.11.1"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "572f695136211188308f16ad2ca5c851a712c464060ae6974944458eb83880ba"
+checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
 
 [[package]]
 name = "byteorder"
@@ -327,9 +333,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.0.29"
+version = "4.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d63b9e9c07271b9957ad22c173bae2a4d9a81127680962039296abcd2f8251d"
+checksum = "0e638668a62aced2c9fb72b5135a33b4a500485ccf2a0e402e09aa04ab2fc115"
 dependencies = [
  "bitflags",
  "clap_derive",
@@ -342,9 +348,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.0.21"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
+checksum = "684a277d672e91966334af371f1a7b5833f9aa00b07c84e92fbce95e00208ce8"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -355,9 +361,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
+checksum = "783fe232adfca04f90f56201b26d79682d4cd2625e0bc7290b95123afe558ade"
 dependencies = [
  "os_str_bytes",
 ]
@@ -481,6 +487,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "css-color-parser"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ccb6ce7ef97e6dc6e575e51b596c9889a5cc88a307b5ef177d215c61fd7581d"
+dependencies = [
+ "lazy_static 0.1.16",
+]
+
 [[package]]
 name = "ctr"
 version = "0.9.2"
@@ -506,9 +521,9 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "1.0.84"
+version = "1.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27874566aca772cb515af4c6e997b5fe2119820bca447689145e39bb734d19a0"
+checksum = "b61a7545f753a88bcbe0a70de1fcc0221e10bfc752f576754fa91e663db1622e"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -518,9 +533,9 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "1.0.84"
+version = "1.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7bb951f2523a49533003656a72121306b225ec16a49a09dc6b0ba0d6f3ec3c0"
+checksum = "f464457d494b5ed6905c63b0c4704842aba319084a0a3561cdc1359536b53200"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -533,15 +548,15 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.84"
+version = "1.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be778b6327031c1c7b61dd2e48124eee5361e6aa76b8de93692f011b08870ab4"
+checksum = "43c7119ce3a3701ed81aca8410b9acf6fc399d2629d057b87e2efa4e63a3aaea"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.84"
+version = "1.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b8a2b87662fe5a0a0b38507756ab66aff32638876a0866e5a5fc82ceb07ee49"
+checksum = "65e07508b90551e610910fa648a1878991d367064997a596135b86df30daf07e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -593,7 +608,7 @@ dependencies = [
  "hashbrown",
  "lock_api",
  "once_cell",
- "parking_lot_core 0.9.5",
+ "parking_lot_core 0.9.6",
 ]
 
 [[package]]
@@ -708,9 +723,9 @@ dependencies = [
 
 [[package]]
 name = "ed25519"
-version = "1.5.2"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e9c280362032ea4203659fc489832d0204ef09f247a0506f170dafcac08c369"
+checksum = "91cff35c70bba8a626e3185d8cd48cc11b5437e1a5bcd15b9b5fa3c64b6dfee7"
 dependencies = [
  "serde",
  "signature",
@@ -813,6 +828,16 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
 
+[[package]]
+name = "futf"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df420e2e84819663797d1ec6544b13c5be84629e7bb00dc960d6917db2987843"
+dependencies = [
+ "mac",
+ "new_debug_unreachable",
+]
+
 [[package]]
 name = "futures"
 version = "0.3.25"
@@ -1019,15 +1044,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
-[[package]]
-name = "hermit-abi"
-version = "0.1.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "hermit-abi"
 version = "0.2.6"
@@ -1055,6 +1071,20 @@ dependencies = [
  "digest 0.10.6",
 ]
 
+[[package]]
+name = "html5ever"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bea68cab48b8459f17cf1c944c67ddc572d272d9f2b274140f223ecb1da4a3b7"
+dependencies = [
+ "log",
+ "mac",
+ "markup5ever",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "http"
 version = "0.2.8"
@@ -1128,21 +1158,24 @@ dependencies = [
 
 [[package]]
 name = "iamb"
-version = "0.0.1"
+version = "0.0.4"
 dependencies = [
  "chrono",
  "clap",
+ "css-color-parser",
  "dirs",
- "futures",
  "gethostname",
- "lazy_static",
+ "html5ever",
+ "lazy_static 1.4.0",
+ "markup5ever_rcdom",
  "matrix-sdk",
+ "mime",
+ "mime_guess",
  "modalkit",
  "regex",
  "rpassword",
  "serde",
  "serde_json",
- "sled",
  "thiserror",
  "tokio",
  "tracing",
@@ -1251,9 +1284,9 @@ dependencies = [
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46112a93252b123d31a119a8d1a1ac19deac4fac6e0e8b0df58f0d4e5870e63c"
+checksum = "e7d6c6f8c91b4b9ed43484ad1a938e393caf35960fce7f82a040497207bd8e9e"
 dependencies = [
  "libc",
  "windows-sys",
@@ -1261,17 +1294,17 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.7.0"
+version = "2.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11b0d96e660696543b251e58030cf9787df56da39dab19ad60eae7353040917e"
+checksum = "30e22bd8629359895450b59ea7a776c850561b96a3b1d31321c1949d9e6c9146"
 
 [[package]]
 name = "is-terminal"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "927609f78c2913a6f6ac3c27a4fe87f43e2a35367c0c4b0f8265e8f49a104330"
+checksum = "28dfb6c8100ccc63462345b67d1bbc3679177c75ee4bf59bf29c8b1d110b8189"
 dependencies = [
- "hermit-abi 0.2.6",
+ "hermit-abi",
  "io-lifetimes",
  "rustix",
  "windows-sys",
@@ -1319,6 +1352,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf186d1a8aa5f5bee5fd662bc9c1b949e0259e1bcc379d1f006847b0080c7417"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1327,9 +1366,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.138"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "link-cplusplus"
@@ -1374,12 +1413,44 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "mac"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
+
 [[package]]
 name = "maplit"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
+[[package]]
+name = "markup5ever"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a2629bb1404f3d34c2e921f21fd34ba00b206124c81f65c50b43b6aaefeb016"
+dependencies = [
+ "log",
+ "phf",
+ "phf_codegen",
+ "string_cache",
+ "string_cache_codegen",
+ "tendril",
+]
+
+[[package]]
+name = "markup5ever_rcdom"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9521dd6750f8e80ee6c53d65e2e4656d7de37064f3a7a5d2d11d05df93839c2"
+dependencies = [
+ "html5ever",
+ "markup5ever",
+ "tendril",
+ "xml5ever",
+]
+
 [[package]]
 name = "matrix-sdk"
 version = "0.6.2"
@@ -1467,7 +1538,7 @@ dependencies = [
  "aes",
  "async-trait",
  "atomic",
- "base64",
+ "base64 0.13.1",
  "byteorder",
  "ctr",
  "dashmap",
@@ -1496,7 +1567,7 @@ checksum = "7847d36bba832bc787214323bc042b71dca7fdf2aee9f0e3eb573b64f2f7eb7f"
 dependencies = [
  "anyhow",
  "async-trait",
- "base64",
+ "base64 0.13.1",
  "dashmap",
  "derive_builder",
  "getrandom 0.2.8",
@@ -1580,6 +1651,16 @@ version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4192263c238a5f0d0c6bfd21f336a313a4ce1c450542449ca191bb657b4642ef"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -1600,9 +1681,9 @@ dependencies = [
 
 [[package]]
 name = "modalkit"
-version = "0.0.9"
+version = "0.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28a676fc7ab6a9fd329ff82d9d291370aafcf904ac3ff9f72397f64529cb1b2d"
+checksum = "4f57d0d53c9f3d8cad2508351f88656e4185cbb8b95d0c738b314fc8167bc90f"
 dependencies = [
  "anymap2",
  "bitflags",
@@ -1618,10 +1699,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "nom"
+name = "new_debug_unreachable"
-version = "7.1.1"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36"
+checksum = "e4a24736216ec316047a1fc4252e27dabb04218aa4a3f37c6e7ddbf1f9782b54"
+
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
 dependencies = [
  "memchr",
  "minimal-lexical",
@@ -1658,19 +1745,19 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6058e64324c71e02bc2b150e4f3bc8286db6c83092132ffa3f6b1eab0f9def5"
+checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
 dependencies = [
- "hermit-abi 0.1.19",
+ "hermit-abi",
  "libc",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.16.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
+checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
 
 [[package]]
 name = "opaque-debug"
@@ -1714,7 +1801,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
 dependencies = [
  "lock_api",
- "parking_lot_core 0.9.5",
+ "parking_lot_core 0.9.6",
 ]
 
 [[package]]
@@ -1733,9 +1820,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.5"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ff9f3fef3968a3ec5945535ed654cb38ff72d7495a25619e2247fb15a2ed9ba"
+checksum = "ba1ef8814b5c993410bb3adfad7a5ed269563e4a2f90c41f5d85be7fb47133bf"
 dependencies = [
  "cfg-if",
  "libc",
@@ -1773,6 +1860,44 @@ version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
 
+[[package]]
+name = "phf"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fabbf1ead8a5bcbc20f5f8b939ee3f5b0f6f281b6ad3468b84656b658b455259"
+dependencies = [
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_codegen"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fb1c3a8bc4dd4e5cfce29b44ffc14bedd2ee294559a294e2a4d4c9e9a6a13cd"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d5285893bb5eb82e6aaf5d59ee909a06a16737a8970984dd7746ba9283498d6"
+dependencies = [
+ "phf_shared",
+ "rand 0.8.5",
+]
+
+[[package]]
+name = "phf_shared"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6796ad771acdc0123d2a88dc428b5e38ef24456743ddb1744ed628f9815c096"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.0.12"
@@ -1832,6 +1957,12 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "precomputed-hash"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
+
 [[package]]
 name = "proc-macro-crate"
 version = "1.2.1"
@@ -1869,18 +2000,18 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.48"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9d89e5dba24725ae5678020bf8f1357a9aa7ff10736b551adbcd3f8d17d766f"
+checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "prost"
-version = "0.11.3"
+version = "0.11.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0b18e655c21ff5ac2084a5ad0611e827b3f92badf79f4910b5a5c58f4d87ff0"
+checksum = "21dc42e00223fc37204bd4aa177e69420c604ca4a183209a8f9de30c6d934698"
 dependencies = [
  "bytes",
  "prost-derive",
@@ -1888,9 +2019,9 @@ dependencies = [
 
 [[package]]
 name = "prost-derive"
-version = "0.11.2"
+version = "0.11.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "164ae68b6587001ca506d3bf7f1000bfa248d0e1217b618108fba4ec1d0cc306"
+checksum = "8bda8c0881ea9f722eb9629376db3d0b903b462477c1aafcb0566610ac28ac5d"
 dependencies = [
  "anyhow",
  "itertools",
@@ -1900,10 +2031,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "quote"
+name = "pulldown-cmark"
-version = "1.0.22"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "556d0f47a940e895261e77dc200d5eadfc6ef644c179c6f5edfc105e3a2292c8"
+checksum = "2d9cc634bc78768157b5cbfe988ffcd1dcba95cd2b2f03a88316c08c6d00ed63"
+dependencies = [
+ "bitflags",
+ "memchr",
+ "unicase",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
 dependencies = [
  "proc-macro2",
 ]
@@ -2001,9 +2143,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
+checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2018,11 +2160,11 @@ checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
 
 [[package]]
 name = "reqwest"
-version = "0.11.13"
+version = "0.11.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68cc60575865c7831548863cc02356512e3f1dc2f3f82cb837d7fc4cc8f3c97c"
+checksum = "21eed90ec8570952d53b772ecf8f206aa1ec9a3d76b2521c56c42973f2d91ee9"
 dependencies = [
- "base64",
+ "base64 0.21.0",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -2072,9 +2214,9 @@ dependencies = [
 
 [[package]]
 name = "ropey"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbd22239fafefc42138ca5da064f3c17726a80d2379d817a3521240e78dd0064"
+checksum = "a4f832915525613e83f275694cb8c184f5df13ca26a9ef0ea6ce736921964c8e"
 dependencies = [
  "smallvec",
  "str_indices",
@@ -2138,7 +2280,7 @@ version = "0.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "716889595f4edc3cfeb94d9f122e413f73e37d7d80ea1c14196e1004241a3889"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bytes",
  "form_urlencoded",
  "getrandom 0.2.8",
@@ -2149,6 +2291,7 @@ dependencies = [
  "js_int",
  "js_option",
  "percent-encoding",
+ "pulldown-cmark",
  "rand 0.8.5",
  "regex",
  "ruma-identifiers-validation",
@@ -2211,9 +2354,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.36.5"
+version = "0.36.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3807b5d10909833d3e9acd1eb5fb988f79376ff10fce42937de71a449c4c588"
+checksum = "d4fdebc4b395b7fbb9ab11e462e20ed9051e7b16e42d24042c776eca0ac81b03"
 dependencies = [
  "bitflags",
  "errno",
@@ -2225,9 +2368,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.20.7"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "539a2bfe908f471bfa933876bd1eb6a19cf2176d375f82ef7f99530a40e48c2c"
+checksum = "fff78fc74d175294f4e83b28343315ffcfb114b156f0185e9741cb5570f50e2f"
 dependencies = [
  "log",
  "ring",
@@ -2237,11 +2380,11 @@ dependencies = [
 
 [[package]]
 name = "rustls-pemfile"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0864aeff53f8c05aa08d86e5ef839d3dfcf07aeba2db32f12db0ef716e87bd55"
+checksum = "d194b56d58803a43635bdc398cd17e383d6f71f9182b9a192c127ca42494a59b"
 dependencies = [
- "base64",
+ "base64 0.21.0",
 ]
 
 [[package]]
@@ -2274,15 +2417,15 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.15"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bfa246f936730408c0abee392cc1a50b118ece708c7f630516defd64480c7d8"
+checksum = "58bc9567378fc7690d6b2addae4e60ac2eeea07becb2c64b9f218b53865cba2a"
 
 [[package]]
 name = "serde"
-version = "1.0.151"
+version = "1.0.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97fed41fc1a24994d044e6db6935e69511a1153b52c15eb42493b26fa87feba0"
+checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
 dependencies = [
  "serde_derive",
 ]
@@ -2298,9 +2441,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.151"
+version = "1.0.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "255abe9a125a985c05190d687b320c12f9b1f0b99445e608c21ba0782c719ad8"
+checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2309,9 +2452,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.90"
+version = "1.0.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8778cc0b528968fe72abec38b5db5a20a70d148116cd9325d2bc5f5180ca3faf"
+checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
 dependencies = [
  "itoa",
  "ryu",
@@ -2360,7 +2503,7 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "900fba806f70c630b0a382d0d825e17a0f19fcd059a2ade1ff237bcddf446b31"
 dependencies = [
- "lazy_static",
+ "lazy_static 1.4.0",
 ]
 
 [[package]]
@@ -2399,6 +2542,12 @@ version = "1.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
 
+[[package]]
+name = "siphasher"
+version = "0.3.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
+
 [[package]]
 name = "slab"
 version = "0.4.7"
@@ -2457,9 +2606,35 @@ dependencies = [
 
 [[package]]
 name = "str_indices"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d9199fa80c817e074620be84374a520062ebac833f358d74b37060ce4a0f2c0"
+checksum = "5f026164926842ec52deb1938fae44f83dfdb82d0a5b0270c5bd5935ab74d6dd"
+
+[[package]]
+name = "string_cache"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "213494b7a2b503146286049378ce02b482200519accc31872ee8be91fa820a08"
+dependencies = [
+ "new_debug_unreachable",
+ "once_cell",
+ "parking_lot 0.12.1",
+ "phf_shared",
+ "precomputed-hash",
+ "serde",
+]
+
+[[package]]
+name = "string_cache_codegen"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6bb30289b722be4ff74a408c3cc27edeaad656e06cb1fe8fa9231fa59c728988"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+]
 
 [[package]]
 name = "strsim"
@@ -2475,9 +2650,9 @@ checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
-version = "1.0.106"
+version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ee3a69cd2c7e06684677e5629b3878b253af05e4714964204279c6bc02cf0b"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2497,10 +2672,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "termcolor"
+name = "tendril"
-version = "1.1.3"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "d24a120c5fc464a3458240ee02c299ebcb9d67b5249c8848b09d639dca8d7bb0"
+dependencies = [
+ "futf",
+ "mac",
+ "utf-8",
+]
+
+[[package]]
+name = "termcolor"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
 dependencies = [
  "winapi-util",
 ]
@@ -2589,9 +2775,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.23.0"
+version = "1.24.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eab6d665857cc6ca78d6e80303a02cea7a7851e85dfbd77cbdc09bd129f1ef46"
+checksum = "597a12a59981d9e3c38d216785b0c37399f6e415e8d0712047620f189371b0bb"
 dependencies = [
  "autocfg",
  "bytes",
@@ -2599,9 +2785,7 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
- "parking_lot 0.12.1",
  "pin-project-lite",
- "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "windows-sys",
@@ -2645,9 +2829,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.5.10"
+version = "0.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1333c76748e868a4d9d1017b5ab53171dfd095f70c712fdb4653a406547f598f"
+checksum = "f4f7f0dd8d50a853a531c426359045b1998f04219d88799810762cd4ad314234"
 dependencies = [
  "serde",
 ]
@@ -2708,7 +2892,7 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ddad33d2d10b1ed7eb9d1f518a5674713876e97e5bb9b7345a7984fbb4f922"
 dependencies = [
- "lazy_static",
+ "lazy_static 1.4.0",
  "log",
  "tracing-core",
 ]
@@ -2729,9 +2913,9 @@ dependencies = [
 
 [[package]]
 name = "try-lock"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
+checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
 
 [[package]]
 name = "tui"
@@ -2753,10 +2937,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
 
 [[package]]
-name = "unicode-bidi"
+name = "unicase"
-version = "0.3.8"
+version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
+dependencies = [
+ "version_check",
+]
+
+[[package]]
+name = "unicode-bidi"
+version = "0.3.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d54675592c1dbefd78cbd98db9bacd89886e1ca50692a0692baefffdeb92dd58"
 
 [[package]]
 name = "unicode-ident"
@@ -2819,6 +3012,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "utf-8"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
+
 [[package]]
 name = "uuid"
 version = "0.8.2"
@@ -2858,7 +3057,7 @@ checksum = "f6f20153a1c82ac5f1243b62e80f067ae608facc415c6ef82f88426a61c79886"
 dependencies = [
  "aes",
  "arrayvec",
- "base64",
+ "base64 0.13.1",
  "cbc",
  "ed25519-dalek",
  "hkdf",
@@ -3090,45 +3289,45 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
 
 [[package]]
 name = "winreg"
@@ -3151,6 +3350,17 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "xml5ever"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4034e1d05af98b51ad7214527730626f019682d797ba38b51689212118d8e650"
+dependencies = [
+ "log",
+ "mac",
+ "markup5ever",
+]
+
 [[package]]
 name = "zeroize"
 version = "1.3.0"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iamb"
-version = "0.0.2"
+version = "0.0.4"
 edition = "2018"
 authors = ["Ulyssa <git@ulyssa.dev>"]
 repository = "https://github.com/ulyssa/iamb"
@@ -10,23 +10,24 @@ description = "A Matrix chat client that uses Vim keybindings"
 license = "Apache-2.0"
 exclude = [".github", "CONTRIBUTING.md"]
 keywords = ["matrix", "chat", "tui", "vim"]
+categories = ["command-line-utilities"]
 rust-version = "1.66"
 
 [dependencies]
 chrono = "0.4"
 clap = {version = "4.0", features = ["derive"]}
+css-color-parser = "0.1.2"
 dirs = "4.0.0"
-futures = "0.3.21"
 gethostname = "0.4.1"
-matrix-sdk = {version = "0.6", default-features = false, features = ["e2e-encryption", "sled", "rustls-tls"]}
+html5ever = "0.26.0"
-modalkit = "0.0.9"
+markup5ever_rcdom = "0.2.0"
+mime = "^0.3.16"
+mime_guess = "^2.0.4"
 regex = "^1.5"
 rpassword = "^7.2"
 serde = "^1.0"
 serde_json = "^1.0"
-sled = "0.34"
 thiserror = "^1.0.37"
-tokio = {version = "1.17.0", features = ["full"]}
 tracing = "~0.1.36"
 tracing-appender = "~0.2.2"
 tracing-subscriber = "0.3.16"
@@ -34,5 +35,17 @@ unicode-segmentation = "^1.7"
 unicode-width = "0.1.10"
 url = {version = "^2.2.2", features = ["serde"]}
 
+[dependencies.modalkit]
+version = "0.0.10"
+
+[dependencies.matrix-sdk]
+version = "0.6"
+default-features = false
+features = ["e2e-encryption", "markdown", "sled", "rustls-tls"]
+
+[dependencies.tokio]
+version = "1.24.1"
+features = ["macros", "net", "rt-multi-thread", "sync", "time"]
+
 [dev-dependencies]
 lazy_static = "1.4.0"

README.md

@@ -1,5 +1,9 @@
 # iamb
 
+[![Build Status](https://github.com/ulyssa/iamb/workflows/CI/badge.svg)](https://github.com/ulyssa/iamb/actions?query=workflow%3ACI+)
+[![License: Apache 2.0](https://img.shields.io/crates/l/iamb.svg?logo=apache)](https://crates.io/crates/iamb)
+[![Latest Version](https://img.shields.io/crates/v/iamb.svg?logo=rust)](https://crates.io/crates/iamb)
+
 ## About
 
 `iamb` is a Matrix client for the terminal that uses Vim keybindings.
@@ -17,7 +21,7 @@ website, [iamb.chat].
 Install Rust and Cargo, and then run:
 
 ```
-cargo install iamb
+cargo install --locked iamb
 ```
 
 ## Configuration
@@ -42,38 +46,38 @@ Matrix website's [features comparison table][client-comparison-matrix], showing
 two other TUI clients and Element Web:
 
 |                                         | iamb        | [gomuks] | [weechat-matrix] | Element Web/Desktop |
-| --------------------------------------- | :----------------- | :----------------: | :----------------: | :-----------------: |
+| --------------------------------------- | :---------- | :------: | :--------------: | :-----------------: |
-| Room directory                          | :x: ([#14])        | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
+| Room directory                          | ❌  ([#14]) | ❌       | ✔️                | ✔️                   |
-| Room tag showing                        | :x: ([#15])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Room tag showing                        | ✔️           | ✔️        | ❌               | ✔️                   |
-| Room tag editing                        | :x: ([#15])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Room tag editing                        | ✔️           | ✔️        | ❌               | ✔️                   |
-| Search joined rooms                     | :x: ([#16])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Search joined rooms                     | ❌  ([#16]) | ✔️        | ❌               | ✔️                   |
-| Room user list                          | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Room user list                          | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Display Room Description                | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Display Room Description                | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Edit Room Description                   | :heavy_check_mark: | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
+| Edit Room Description                   | ✔️           | ❌       | ✔️                | ✔️                   |
-| Highlights                              | :x: ([#8])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Highlights                              | ❌  ([#8])  | ✔️        | ✔️                | ✔️                   |
-| Pushrules                               | :x:                | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Pushrules                               | ❌          | ✔️        | ❌               | ✔️                   |
-| Send read markers                       | :x: ([#11])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Send read markers                       | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Display read markers                    | :x: ([#11])        | :x:                | :x:                | :heavy_check_mark:  |
+| Display read markers                    | ✔️           | ❌       | ❌               | ✔️                   |
-| Sending Invites                         | :x: ([#7])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Sending Invites                         | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Accepting Invites                       | :x: ([#7])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Accepting Invites                       | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Typing Notification                     | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Typing Notification                     | ✔️           | ✔️        | ✔️                | ✔️                   |
-| E2E                                     | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| E2E                                     | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Replies                                 | :x: ([#3])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Replies                                 | ✔️           | ✔️        | ❌               | ✔️                   |
-| Attachment uploading                    | :x: ([#13])        | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
+| Attachment uploading                    | ✔️           | ❌       | ✔️                | ✔️                   |
-| Attachment downloading                  | :x: ([#13])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Attachment downloading                  | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Send stickers                           | :x:                | :x:                | :x:                | :heavy_check_mark:  |
+| Send stickers                           | ❌          | ❌       | ❌               | ✔️                   |
-| Send formatted messages (markdown)      | :x: ([#10])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Send formatted messages (markdown)      | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Rich Text Editor for formatted messages | :x:                | :x:                | :x:                | :heavy_check_mark:  |
+| Rich Text Editor for formatted messages | ❌          | ❌       | ❌               | ✔️                   |
-| Display formatted messages              | :x: ([#10])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Display formatted messages              | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Redacting                               | :x: ([#5])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| Redacting                               | ✔️           | ✔️        | ✔️                | ✔️                   |
-| Multiple Matrix Accounts                | :heavy_check_mark: | :x:                | :heavy_check_mark: | :x:                 |
+| Multiple Matrix Accounts                | ✔️           | ❌       | ✔️                | ❌                  |
-| New user registration                   | :x:                | :x:                | :x:                | :heavy_check_mark:  |
+| New user registration                   | ❌          | ❌       | ❌               | ✔️                   |
-| VOIP                                    | :x:                | :x:                | :x:                | :heavy_check_mark:  |
+| VOIP                                    | ❌          | ❌       | ❌               | ✔️                   |
-| Reactions                               | :x: ([#2])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Reactions                               | ❌  ([#2])  | ✔️        | ❌               | ✔️                   |
-| Message editing                         | :x: ([#4])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Message editing                         | ✔️           | ✔️        | ❌               | ✔️                   |
-| Room upgrades                           | :x:                | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
+| Room upgrades                           | ❌          | ✔️        | ❌               | ✔️                   |
-| Localisations                           | :x:                | 1                  | :x:                | 44                  |
+| Localisations                           | ❌          | 1        | ❌               | 44                  |
-| SSO Support                             | :x:                | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
+| SSO Support                             | ❌          | ✔️        | ✔️                | ✔️                   |
                                                                                        
 ## License
 

src/base.rs

@@ -8,7 +8,22 @@ use tracing::warn;
 
 use matrix_sdk::{
     encryption::verification::SasVerification,
-    ruma::{OwnedRoomId, OwnedUserId, RoomId},
+    room::Joined,
+    ruma::{
+        events::room::message::{
+            OriginalRoomMessageEvent,
+            Relation,
+            Replacement,
+            RoomMessageEvent,
+            RoomMessageEventContent,
+        },
+        events::tag::{TagName, Tags},
+        EventId,
+        OwnedEventId,
+        OwnedRoomId,
+        OwnedUserId,
+        RoomId,
+    },
 };
 
 use modalkit::{
@@ -41,12 +56,12 @@ use modalkit::{
 };
 
 use crate::{
-    message::{user_style, Message, Messages},
+    message::{Message, MessageEvent, MessageKey, MessageTimeStamp, Messages},
     worker::Requester,
     ApplicationSettings,
 };
 
-const ROOM_FETCH_DEBOUNCE: Duration = Duration::from_secs(3);
+const ROOM_FETCH_DEBOUNCE: Duration = Duration::from_secs(2);
 
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum IambInfo {}
@@ -60,43 +75,83 @@ pub enum VerifyAction {
 }
 
 #[derive(Clone, Debug, Eq, PartialEq)]
-pub enum SetRoomField {
+pub enum MessageAction {
-    Name(String),
+    /// Cance the current reply or edit.
-    Topic(String),
+    Cancel,
+
+    /// Download an attachment to the given path.
+    ///
+    /// The [bool] argument controls whether to overwrite any already existing file at the
+    /// destination path.
+    Download(Option<String>, bool),
+
+    /// Edit a sent message.
+    Edit,
+
+    /// Redact a message.
+    Redact(Option<String>),
+
+    /// Reply to a message.
+    Reply,
+}
+
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum RoomField {
+    Name,
+    Tag(TagName),
+    Topic,
 }
 
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum RoomAction {
+    InviteAccept,
+    InviteReject,
+    InviteSend(OwnedUserId),
     Members(Box<CommandContext<ProgramContext>>),
-    Set(SetRoomField),
+    Set(RoomField, String),
+    Unset(RoomField),
 }
 
-impl From<SetRoomField> for RoomAction {
+#[derive(Clone, Debug, Eq, PartialEq)]
-    fn from(act: SetRoomField) -> Self {
+pub enum SendAction {
-        RoomAction::Set(act)
+    Submit,
-    }
+    Upload(String),
 }
 
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum IambAction {
+    Message(MessageAction),
     Room(RoomAction),
+    Send(SendAction),
     Verify(VerifyAction, String),
     VerifyRequest(String),
-    SendMessage(OwnedRoomId, String),
     ToggleScrollbackFocus,
 }
 
+impl From<MessageAction> for IambAction {
+    fn from(act: MessageAction) -> Self {
+        IambAction::Message(act)
+    }
+}
+
 impl From<RoomAction> for IambAction {
     fn from(act: RoomAction) -> Self {
         IambAction::Room(act)
     }
 }
 
+impl From<SendAction> for IambAction {
+    fn from(act: SendAction) -> Self {
+        IambAction::Send(act)
+    }
+}
+
 impl ApplicationAction for IambAction {
     fn is_edit_sequence<C: EditContext>(&self, _: &C) -> SequenceStatus {
         match self {
+            IambAction::Message(..) => SequenceStatus::Break,
             IambAction::Room(..) => SequenceStatus::Break,
-            IambAction::SendMessage(..) => SequenceStatus::Break,
+            IambAction::Send(..) => SequenceStatus::Break,
             IambAction::ToggleScrollbackFocus => SequenceStatus::Break,
             IambAction::Verify(..) => SequenceStatus::Break,
             IambAction::VerifyRequest(..) => SequenceStatus::Break,
@@ -105,8 +160,9 @@ impl ApplicationAction for IambAction {
 
     fn is_last_action<C: EditContext>(&self, _: &C) -> SequenceStatus {
         match self {
+            IambAction::Message(..) => SequenceStatus::Atom,
             IambAction::Room(..) => SequenceStatus::Atom,
-            IambAction::SendMessage(..) => SequenceStatus::Atom,
+            IambAction::Send(..) => SequenceStatus::Atom,
             IambAction::ToggleScrollbackFocus => SequenceStatus::Atom,
             IambAction::Verify(..) => SequenceStatus::Atom,
             IambAction::VerifyRequest(..) => SequenceStatus::Atom,
@@ -115,8 +171,9 @@ impl ApplicationAction for IambAction {
 
     fn is_last_selection<C: EditContext>(&self, _: &C) -> SequenceStatus {
         match self {
+            IambAction::Message(..) => SequenceStatus::Ignore,
             IambAction::Room(..) => SequenceStatus::Ignore,
-            IambAction::SendMessage(..) => SequenceStatus::Ignore,
+            IambAction::Send(..) => SequenceStatus::Ignore,
             IambAction::ToggleScrollbackFocus => SequenceStatus::Ignore,
             IambAction::Verify(..) => SequenceStatus::Ignore,
             IambAction::VerifyRequest(..) => SequenceStatus::Ignore,
@@ -125,8 +182,9 @@ impl ApplicationAction for IambAction {
 
     fn is_switchable<C: EditContext>(&self, _: &C) -> bool {
         match self {
+            IambAction::Message(..) => false,
             IambAction::Room(..) => false,
-            IambAction::SendMessage(..) => false,
+            IambAction::Send(..) => false,
             IambAction::ToggleScrollbackFocus => false,
             IambAction::Verify(..) => false,
             IambAction::VerifyRequest(..) => false,
@@ -134,6 +192,12 @@ impl ApplicationAction for IambAction {
     }
 }
 
+impl From<RoomAction> for ProgramAction {
+    fn from(act: RoomAction) -> Self {
+        IambAction::from(act).into()
+    }
+}
+
 impl From<IambAction> for ProgramAction {
     fn from(act: IambAction) -> Self {
         Action::Application(act)
@@ -150,9 +214,11 @@ pub type AsyncProgramStore = Arc<AsyncMutex<ProgramStore>>;
 
 pub type IambResult<T> = UIResult<T, IambInfo>;
 
+pub type Receipts = HashMap<OwnedEventId, Vec<OwnedUserId>>;
+
 #[derive(thiserror::Error, Debug)]
 pub enum IambError {
-    #[error("Unknown room identifier: {0}")]
+    #[error("Invalid user identifier: {0}")]
     InvalidUserId(String),
 
     #[error("Invalid verification user/device pair: {0}")]
@@ -173,6 +239,24 @@ pub enum IambError {
     #[error("Serialization/deserialization error: {0}")]
     Serde(#[from] serde_json::Error),
 
+    #[error("Selected message does not have any attachments")]
+    NoAttachment,
+
+    #[error("No message currently selected")]
+    NoSelectedMessage,
+
+    #[error("Current window is not a room or space")]
+    NoSelectedRoomOrSpace,
+
+    #[error("Current window is not a room")]
+    NoSelectedRoom,
+
+    #[error("You do not have a current invitation to this room")]
+    NotInvited,
+
+    #[error("You need to join the room before you can do that")]
+    NotJoined,
+
     #[error("Unknown room identifier: {0}")]
     UnknownRoom(OwnedRoomId),
 
@@ -199,13 +283,76 @@ pub enum RoomFetchStatus {
 #[derive(Default)]
 pub struct RoomInfo {
     pub name: Option<String>,
+    pub tags: Option<Tags>,
+
+    pub keys: HashMap<OwnedEventId, MessageKey>,
     pub messages: Messages,
+
+    pub receipts: HashMap<OwnedEventId, Vec<OwnedUserId>>,
+    pub read_till: Option<OwnedEventId>,
+
     pub fetch_id: RoomFetchStatus,
     pub fetch_last: Option<Instant>,
     pub users_typing: Option<(Instant, Vec<OwnedUserId>)>,
 }
 
 impl RoomInfo {
+    pub fn get_event(&self, event_id: &EventId) -> Option<&Message> {
+        self.messages.get(self.keys.get(event_id)?)
+    }
+
+    pub fn insert_edit(&mut self, msg: Replacement) {
+        let event_id = msg.event_id;
+        let new_content = msg.new_content;
+
+        let key = if let Some(k) = self.keys.get(&event_id) {
+            k
+        } else {
+            return;
+        };
+
+        let msg = if let Some(msg) = self.messages.get_mut(key) {
+            msg
+        } else {
+            return;
+        };
+
+        match &mut msg.event {
+            MessageEvent::Original(orig) => {
+                orig.content = *new_content;
+            },
+            MessageEvent::Local(_, content) => {
+                *content = new_content;
+            },
+            MessageEvent::Redacted(_) => {
+                return;
+            },
+        }
+    }
+
+    pub fn insert_message(&mut self, msg: RoomMessageEvent) {
+        let event_id = msg.event_id().to_owned();
+        let key = (msg.origin_server_ts().into(), event_id.clone());
+
+        self.keys.insert(event_id.clone(), key.clone());
+        self.messages.insert(key, msg.into());
+
+        // Remove any echo.
+        let key = (MessageTimeStamp::LocalEcho, event_id);
+        let _ = self.messages.remove(&key);
+    }
+
+    pub fn insert(&mut self, msg: RoomMessageEvent) {
+        match msg {
+            RoomMessageEvent::Original(OriginalRoomMessageEvent {
+                content:
+                    RoomMessageEventContent { relates_to: Some(Relation::Replacement(repl)), .. },
+                ..
+            }) => self.insert_edit(repl),
+            _ => self.insert_message(msg),
+        }
+    }
+
     fn recently_fetched(&self) -> bool {
         self.fetch_last.map_or(false, |i| i.elapsed() < ROOM_FETCH_DEBOUNCE)
     }
@@ -222,24 +369,20 @@ impl RoomInfo {
         }
     }
 
-    fn get_typing_spans(&self) -> Spans {
+    fn get_typing_spans<'a>(&'a self, settings: &'a ApplicationSettings) -> Spans<'a> {
         let typers = self.get_typers();
         let n = typers.len();
 
         match n {
             0 => Spans(vec![]),
             1 => {
-                let user = typers[0].as_str();
+                let user = settings.get_user_span(typers[0].as_ref());
-                let user = Span::styled(user, user_style(user));
 
                 Spans(vec![user, Span::from(" is typing...")])
             },
             2 => {
-                let user1 = typers[0].as_str();
+                let user1 = settings.get_user_span(typers[0].as_ref());
-                let user1 = Span::styled(user1, user_style(user1));
+                let user2 = settings.get_user_span(typers[1].as_ref());
-
-                let user2 = typers[1].as_str();
-                let user2 = Span::styled(user2, user_style(user2));
 
                 Spans(vec![
                     user1,
@@ -274,7 +417,7 @@ impl RoomInfo {
         let top = Rect::new(area.x, area.y, area.width, area.height - 1);
         let bar = Rect::new(area.x, area.y + top.height, area.width, 1);
 
-        Paragraph::new(self.get_typing_spans())
+        Paragraph::new(self.get_typing_spans(settings))
             .alignment(Alignment::Center)
             .render(bar, buf);
 
@@ -304,6 +447,10 @@ impl ChatStore {
         }
     }
 
+    pub fn get_joined_room(&self, room_id: &RoomId) -> Option<Joined> {
+        self.worker.client.get_joined_room(room_id)
+    }
+
     pub fn get_room_title(&self, room_id: &RoomId) -> String {
         self.rooms
             .get(room_id)
@@ -312,6 +459,26 @@ impl ChatStore {
             .unwrap_or_else(|| "Untitled Matrix Room".to_string())
     }
 
+    pub async fn set_receipts(&mut self, receipts: Vec<(OwnedRoomId, Receipts)>) {
+        let mut updates = vec![];
+
+        for (room_id, receipts) in receipts.into_iter() {
+            if let Some(info) = self.rooms.get_mut(&room_id) {
+                info.receipts = receipts;
+
+                if let Some(read_till) = info.read_till.take() {
+                    updates.push((room_id, read_till));
+                }
+            }
+        }
+
+        for (room_id, read_till) in updates.into_iter() {
+            if let Some(room) = self.worker.client.get_joined_room(&room_id) {
+                let _ = room.read_receipt(read_till.as_ref()).await;
+            }
+        }
+    }
+
     pub fn mark_for_load(&mut self, room_id: OwnedRoomId) {
         self.need_load.insert(room_id);
     }
@@ -340,9 +507,7 @@ impl ChatStore {
             match res {
                 Ok((fetch_id, msgs)) => {
                     for msg in msgs.into_iter() {
-                        let key = (msg.origin_server_ts().into(), msg.event_id().to_owned());
+                        info.insert(msg);
-
-                        info.messages.insert(key, Message::from(msg));
                     }
 
                     info.fetch_id =
@@ -448,11 +613,14 @@ impl ApplicationInfo for IambInfo {
 #[cfg(test)]
 pub mod tests {
     use super::*;
+    use crate::config::user_style_from_color;
     use crate::tests::*;
+    use modalkit::tui::style::Color;
 
     #[test]
     fn test_typing_spans() {
         let mut info = RoomInfo::default();
+        let settings = mock_settings();
 
         let users0 = vec![];
         let users1 = vec![TEST_USER1.clone()];
@@ -473,18 +641,18 @@ pub mod tests {
 
         // Nothing set.
         assert_eq!(info.users_typing, None);
-        assert_eq!(info.get_typing_spans(), Spans(vec![]));
+        assert_eq!(info.get_typing_spans(&settings), Spans(vec![]));
 
         // Empty typing list.
         info.set_typing(users0);
         assert!(info.users_typing.is_some());
-        assert_eq!(info.get_typing_spans(), Spans(vec![]));
+        assert_eq!(info.get_typing_spans(&settings), Spans(vec![]));
 
         // Single user typing.
         info.set_typing(users1);
         assert!(info.users_typing.is_some());
         assert_eq!(
-            info.get_typing_spans(),
+            info.get_typing_spans(&settings),
             Spans(vec![
                 Span::styled("@user1:example.com", user_style("@user1:example.com")),
                 Span::from(" is typing...")
@@ -495,7 +663,7 @@ pub mod tests {
         info.set_typing(users2);
         assert!(info.users_typing.is_some());
         assert_eq!(
-            info.get_typing_spans(),
+            info.get_typing_spans(&settings),
             Spans(vec![
                 Span::styled("@user1:example.com", user_style("@user1:example.com")),
                 Span::raw(" and "),
@@ -507,11 +675,22 @@ pub mod tests {
         // Four users typing.
         info.set_typing(users4);
         assert!(info.users_typing.is_some());
-        assert_eq!(info.get_typing_spans(), Spans::from("Several people are typing..."));
+        assert_eq!(info.get_typing_spans(&settings), Spans::from("Several people are typing..."));
 
         // Five users typing.
         info.set_typing(users5);
         assert!(info.users_typing.is_some());
-        assert_eq!(info.get_typing_spans(), Spans::from("Many people are typing..."));
+        assert_eq!(info.get_typing_spans(&settings), Spans::from("Many people are typing..."));
+
+        // Test that USER5 gets rendered using the configured color and name.
+        info.set_typing(vec![TEST_USER5.clone()]);
+        assert!(info.users_typing.is_some());
+        assert_eq!(
+            info.get_typing_spans(&settings),
+            Spans(vec![
+                Span::styled("USER 5", user_style_from_color(Color::Black)),
+                Span::from(" is typing...")
+            ])
+        );
     }
 }

src/commands.rs

@@ -1,3 +1,7 @@
+use std::convert::TryFrom;
+
+use matrix_sdk::ruma::{events::tag::TagName, OwnedUserId};
+
 use modalkit::{
     editing::base::OpenTarget,
     env::vim::command::{CommandContext, CommandDescription},
@@ -8,17 +12,90 @@ use modalkit::{
 use crate::base::{
     IambAction,
     IambId,
+    MessageAction,
     ProgramCommand,
     ProgramCommands,
     ProgramContext,
     RoomAction,
-    SetRoomField,
+    RoomField,
+    SendAction,
     VerifyAction,
 };
 
 type ProgContext = CommandContext<ProgramContext>;
 type ProgResult = CommandResult<ProgramCommand>;
 
+/// Convert strings the user types into a tag name.
+fn tag_name(name: String) -> Result<TagName, CommandError> {
+    let tag = match name.as_str() {
+        "fav" | "favorite" | "favourite" | "m.favourite" => TagName::Favorite,
+        "low" | "lowpriority" | "low_priority" | "low-priority" | "m.lowpriority" => {
+            TagName::LowPriority
+        },
+        "servernotice" | "server_notice" | "server-notice" | "m.server_notice" => {
+            TagName::ServerNotice
+        },
+        _ => {
+            if let Ok(tag) = name.parse() {
+                TagName::User(tag)
+            } else {
+                let msg = format!("Invalid user tag name: {}", name);
+
+                return Err(CommandError::Error(msg));
+            }
+        },
+    };
+
+    Ok(tag)
+}
+
+fn iamb_invite(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    let args = desc.arg.strings()?;
+
+    if args.is_empty() {
+        return Err(CommandError::InvalidArgument);
+    }
+
+    let ract = match args[0].as_str() {
+        "accept" => {
+            if args.len() != 1 {
+                return Err(CommandError::InvalidArgument);
+            }
+
+            RoomAction::InviteAccept
+        },
+        "reject" => {
+            if args.len() != 1 {
+                return Err(CommandError::InvalidArgument);
+            }
+
+            RoomAction::InviteReject
+        },
+        "send" => {
+            if args.len() != 2 {
+                return Err(CommandError::InvalidArgument);
+            }
+
+            if let Ok(user) = OwnedUserId::try_from(args[1].as_str()) {
+                RoomAction::InviteSend(user)
+            } else {
+                let msg = format!("Invalid user identifier: {}", args[1]);
+                let err = CommandError::Error(msg);
+
+                return Err(err);
+            }
+        },
+        _ => {
+            return Err(CommandError::InvalidArgument);
+        },
+    };
+
+    let iact = IambAction::from(ract);
+    let step = CommandStep::Continue(iact.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
 fn iamb_verify(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     let mut args = desc.arg.strings()?;
 
@@ -80,6 +157,52 @@ fn iamb_members(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     return Ok(step);
 }
 
+fn iamb_cancel(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    if !desc.arg.text.is_empty() {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let ract = IambAction::from(MessageAction::Cancel);
+    let step = CommandStep::Continue(ract.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
+fn iamb_edit(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    if !desc.arg.text.is_empty() {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let ract = IambAction::from(MessageAction::Edit);
+    let step = CommandStep::Continue(ract.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
+fn iamb_redact(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    let args = desc.arg.strings()?;
+
+    if args.len() > 1 {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let ract = IambAction::from(MessageAction::Redact(args.into_iter().next()));
+    let step = CommandStep::Continue(ract.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
+fn iamb_reply(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    if !desc.arg.text.is_empty() {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let ract = IambAction::from(MessageAction::Reply);
+    let step = CommandStep::Continue(ract.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
 fn iamb_rooms(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     if !desc.arg.text.is_empty() {
         return Result::Err(CommandError::InvalidArgument);
@@ -126,22 +249,46 @@ fn iamb_join(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     return Ok(step);
 }
 
-fn iamb_set(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+fn iamb_room(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     let mut args = desc.arg.strings()?;
 
-    if args.len() != 2 {
+    if args.len() < 2 {
         return Result::Err(CommandError::InvalidArgument);
     }
 
     let field = args.remove(0);
-    let value = args.remove(0);
+    let action = args.remove(0);
 
-    let act: IambAction = match field.as_str() {
+    if args.len() > 1 {
-        "room.name" => RoomAction::Set(SetRoomField::Name(value)).into(),
-        "room.topic" => RoomAction::Set(SetRoomField::Topic(value)).into(),
-        _ => {
         return Result::Err(CommandError::InvalidArgument);
-        },
+    }
+
+    let act: IambAction = match (field.as_str(), action.as_str(), args.pop()) {
+        // :room name set <room-name>
+        ("name", "set", Some(s)) => RoomAction::Set(RoomField::Name, s).into(),
+        ("name", "set", None) => return Result::Err(CommandError::InvalidArgument),
+
+        // :room name unset
+        ("name", "unset", None) => RoomAction::Unset(RoomField::Name).into(),
+        ("name", "unset", Some(_)) => return Result::Err(CommandError::InvalidArgument),
+
+        // :room topic set <topic>
+        ("topic", "set", Some(s)) => RoomAction::Set(RoomField::Topic, s).into(),
+        ("topic", "set", None) => return Result::Err(CommandError::InvalidArgument),
+
+        // :room topic unset
+        ("topic", "unset", None) => RoomAction::Unset(RoomField::Topic).into(),
+        ("topic", "unset", Some(_)) => return Result::Err(CommandError::InvalidArgument),
+
+        // :room tag set <tag-name>
+        ("tag", "set", Some(s)) => RoomAction::Set(RoomField::Tag(tag_name(s)?), "".into()).into(),
+        ("tag", "set", None) => return Result::Err(CommandError::InvalidArgument),
+
+        // :room tag unset <tag-name>
+        ("tag", "unset", Some(s)) => RoomAction::Unset(RoomField::Tag(tag_name(s)?)).into(),
+        ("tag", "unset", None) => return Result::Err(CommandError::InvalidArgument),
+
+        _ => return Result::Err(CommandError::InvalidArgument),
     };
 
     let step = CommandStep::Continue(act.into(), ctx.context.take());
@@ -149,13 +296,48 @@ fn iamb_set(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
     return Ok(step);
 }
 
+fn iamb_upload(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    let mut args = desc.arg.strings()?;
+
+    if args.len() != 1 {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let sact = SendAction::Upload(args.remove(0));
+    let iact = IambAction::from(sact);
+    let step = CommandStep::Continue(iact.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
+fn iamb_download(desc: CommandDescription, ctx: &mut ProgContext) -> ProgResult {
+    let mut args = desc.arg.strings()?;
+
+    if args.len() > 1 {
+        return Result::Err(CommandError::InvalidArgument);
+    }
+
+    let mact = MessageAction::Download(args.pop(), desc.bang);
+    let iact = IambAction::from(mact);
+    let step = CommandStep::Continue(iact.into(), ctx.context.take());
+
+    return Ok(step);
+}
+
 fn add_iamb_commands(cmds: &mut ProgramCommands) {
+    cmds.add_command(ProgramCommand { names: vec!["cancel".into()], f: iamb_cancel });
     cmds.add_command(ProgramCommand { names: vec!["dms".into()], f: iamb_dms });
+    cmds.add_command(ProgramCommand { names: vec!["download".into()], f: iamb_download });
+    cmds.add_command(ProgramCommand { names: vec!["edit".into()], f: iamb_edit });
+    cmds.add_command(ProgramCommand { names: vec!["invite".into()], f: iamb_invite });
     cmds.add_command(ProgramCommand { names: vec!["join".into()], f: iamb_join });
     cmds.add_command(ProgramCommand { names: vec!["members".into()], f: iamb_members });
+    cmds.add_command(ProgramCommand { names: vec!["redact".into()], f: iamb_redact });
+    cmds.add_command(ProgramCommand { names: vec!["reply".into()], f: iamb_reply });
     cmds.add_command(ProgramCommand { names: vec!["rooms".into()], f: iamb_rooms });
-    cmds.add_command(ProgramCommand { names: vec!["set".into()], f: iamb_set });
+    cmds.add_command(ProgramCommand { names: vec!["room".into()], f: iamb_room });
     cmds.add_command(ProgramCommand { names: vec!["spaces".into()], f: iamb_spaces });
+    cmds.add_command(ProgramCommand { names: vec!["upload".into()], f: iamb_upload });
     cmds.add_command(ProgramCommand { names: vec!["verify".into()], f: iamb_verify });
     cmds.add_command(ProgramCommand { names: vec!["welcome".into()], f: iamb_welcome });
 }
@@ -171,6 +353,7 @@ pub fn setup_commands() -> ProgramCommands {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use matrix_sdk::ruma::user_id;
     use modalkit::editing::action::WindowAction;
 
     #[test]
@@ -241,46 +424,284 @@ mod tests {
     }
 
     #[test]
-    fn test_cmd_set() {
+    fn test_cmd_room_invalid() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room foo", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room set topic", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_room_topic_set() {
         let mut cmds = setup_commands();
         let ctx = ProgramContext::default();
 
         let res = cmds
-            .input_cmd("set room.topic \"Lots of fun discussion!\"", ctx.clone())
+            .input_cmd("room topic set \"Lots of fun discussion!\"", ctx.clone())
             .unwrap();
-        let act = IambAction::Room(SetRoomField::Topic("Lots of fun discussion!".into()).into());
+        let act = RoomAction::Set(RoomField::Topic, "Lots of fun discussion!".into());
         assert_eq!(res, vec![(act.into(), ctx.clone())]);
 
         let res = cmds
-            .input_cmd("set room.topic The\\ Discussion\\ Room", ctx.clone())
+            .input_cmd("room topic set The\\ Discussion\\ Room", ctx.clone())
             .unwrap();
-        let act = IambAction::Room(SetRoomField::Topic("The Discussion Room".into()).into());
+        let act = RoomAction::Set(RoomField::Topic, "The Discussion Room".into());
         assert_eq!(res, vec![(act.into(), ctx.clone())]);
 
-        let res = cmds.input_cmd("set room.topic Development", ctx.clone()).unwrap();
+        let res = cmds.input_cmd("room topic set Development", ctx.clone()).unwrap();
-        let act = IambAction::Room(SetRoomField::Topic("Development".into()).into());
+        let act = RoomAction::Set(RoomField::Topic, "Development".into());
         assert_eq!(res, vec![(act.into(), ctx.clone())]);
 
-        let res = cmds.input_cmd("set room.name Development", ctx.clone()).unwrap();
+        let res = cmds.input_cmd("room topic", ctx.clone());
-        let act = IambAction::Room(SetRoomField::Name("Development".into()).into());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room topic set", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room topic set A B C", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_room_name_invalid() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room name", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room name foo", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_room_name_set() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room name set Development", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Name, "Development".into());
         assert_eq!(res, vec![(act.into(), ctx.clone())]);
 
         let res = cmds
-            .input_cmd("set room.name \"Application Development\"", ctx.clone())
+            .input_cmd("room name set \"Application Development\"", ctx.clone())
             .unwrap();
-        let act = IambAction::Room(SetRoomField::Name("Application Development".into()).into());
+        let act = RoomAction::Set(RoomField::Name, "Application Development".into());
         assert_eq!(res, vec![(act.into(), ctx.clone())]);
 
-        let res = cmds.input_cmd("set", ctx.clone());
+        let res = cmds.input_cmd("room name set", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_room_name_unset() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room name unset", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Name);
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room name unset foo", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_room_tag_set() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room tag set favourite", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::Favorite), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set favorite", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::Favorite), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set fav", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::Favorite), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set low_priority", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::LowPriority), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set low-priority", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::LowPriority), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set low", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::LowPriority), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set servernotice", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::ServerNotice), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set server_notice", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::ServerNotice), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set server_notice", ctx.clone()).unwrap();
+        let act = RoomAction::Set(RoomField::Tag(TagName::ServerNotice), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set u.custom-tag", ctx.clone()).unwrap();
+        let act = RoomAction::Set(
+            RoomField::Tag(TagName::User("u.custom-tag".parse().unwrap())),
+            "".into(),
+        );
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag set u.irc", ctx.clone()).unwrap();
+        let act =
+            RoomAction::Set(RoomField::Tag(TagName::User("u.irc".parse().unwrap())), "".into());
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag", ctx.clone());
         assert_eq!(res, Err(CommandError::InvalidArgument));
 
-        let res = cmds.input_cmd("set room.name", ctx.clone());
+        let res = cmds.input_cmd("room tag set", ctx.clone());
         assert_eq!(res, Err(CommandError::InvalidArgument));
 
-        let res = cmds.input_cmd("set room.topic", ctx.clone());
+        let res = cmds.input_cmd("room tag set unknown", ctx.clone());
+        assert_eq!(res, Err(CommandError::Error("Invalid user tag name: unknown".into())));
+
+        let res = cmds.input_cmd("room tag set needs-leading-u-dot", ctx.clone());
+        assert_eq!(
+            res,
+            Err(CommandError::Error("Invalid user tag name: needs-leading-u-dot".into()))
+        );
+    }
+
+    #[test]
+    fn test_cmd_room_tag_unset() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("room tag unset favourite", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::Favorite));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset favorite", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::Favorite));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset fav", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::Favorite));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset low_priority", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::LowPriority));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset low-priority", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::LowPriority));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset low", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::LowPriority));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset servernotice", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::ServerNotice));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset server_notice", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::ServerNotice));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset server_notice", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::ServerNotice));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset u.custom-tag", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::User("u.custom-tag".parse().unwrap())));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag unset u.irc", ctx.clone()).unwrap();
+        let act = RoomAction::Unset(RoomField::Tag(TagName::User("u.irc".parse().unwrap())));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("room tag", ctx.clone());
         assert_eq!(res, Err(CommandError::InvalidArgument));
 
-        let res = cmds.input_cmd("set room.topic A B C", ctx.clone());
+        let res = cmds.input_cmd("room tag set", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("room tag unset unknown", ctx.clone());
+        assert_eq!(res, Err(CommandError::Error("Invalid user tag name: unknown".into())));
+
+        let res = cmds.input_cmd("room tag unset needs-leading-u-dot", ctx.clone());
+        assert_eq!(
+            res,
+            Err(CommandError::Error("Invalid user tag name: needs-leading-u-dot".into()))
+        );
+    }
+
+    #[test]
+    fn test_cmd_invite() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("invite accept", ctx.clone()).unwrap();
+        let act = IambAction::Room(RoomAction::InviteAccept);
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("invite reject", ctx.clone()).unwrap();
+        let act = IambAction::Room(RoomAction::InviteReject);
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("invite send @user:example.com", ctx.clone()).unwrap();
+        let act =
+            IambAction::Room(RoomAction::InviteSend(user_id!("@user:example.com").to_owned()));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("invite", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("invite foo", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("invite accept @user:example.com", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("invite reject @user:example.com", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("invite send", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+
+        let res = cmds.input_cmd("invite @user:example.com", ctx.clone());
+        assert_eq!(res, Err(CommandError::InvalidArgument));
+    }
+
+    #[test]
+    fn test_cmd_redact() {
+        let mut cmds = setup_commands();
+        let ctx = ProgramContext::default();
+
+        let res = cmds.input_cmd("redact", ctx.clone()).unwrap();
+        let act = IambAction::Message(MessageAction::Redact(None));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("redact Removed", ctx.clone()).unwrap();
+        let act = IambAction::Message(MessageAction::Redact(Some("Removed".into())));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("redact \"Removed\"", ctx.clone()).unwrap();
+        let act = IambAction::Message(MessageAction::Redact(Some("Removed".into())));
+        assert_eq!(res, vec![(act.into(), ctx.clone())]);
+
+        let res = cmds.input_cmd("redact Removed Removed", ctx.clone());
         assert_eq!(res, Err(CommandError::InvalidArgument));
     }
 }

src/config.rs

@@ -1,14 +1,23 @@
+use std::borrow::Cow;
+use std::collections::hash_map::DefaultHasher;
 use std::collections::HashMap;
+use std::fmt;
 use std::fs::File;
+use std::hash::{Hash, Hasher};
 use std::io::BufReader;
 use std::path::{Path, PathBuf};
 use std::process;
 
 use clap::Parser;
-use matrix_sdk::ruma::OwnedUserId;
+use matrix_sdk::ruma::{OwnedUserId, UserId};
-use serde::Deserialize;
+use serde::{de::Error as SerdeError, de::Visitor, Deserialize, Deserializer};
 use url::Url;
 
+use modalkit::tui::{
+    style::{Color, Modifier as StyleModifier, Style},
+    text::Span,
+};
+
 macro_rules! usage {
     ( $($args: tt)* ) => {
         println!($($args)*);
@@ -16,6 +25,34 @@ macro_rules! usage {
     }
 }
 
+const COLORS: [Color; 13] = [
+    Color::Blue,
+    Color::Cyan,
+    Color::Green,
+    Color::LightBlue,
+    Color::LightGreen,
+    Color::LightCyan,
+    Color::LightMagenta,
+    Color::LightRed,
+    Color::LightYellow,
+    Color::Magenta,
+    Color::Red,
+    Color::Reset,
+    Color::Yellow,
+];
+
+pub fn user_color(user: &str) -> Color {
+    let mut hasher = DefaultHasher::new();
+    user.hash(&mut hasher);
+    let color = hasher.finish() as usize % COLORS.len();
+
+    COLORS[color]
+}
+
+pub fn user_style_from_color(color: Color) -> Style {
+    Style::default().fg(color).add_modifier(StyleModifier::BOLD)
+}
+
 fn is_profile_char(c: char) -> bool {
     c.is_ascii_alphanumeric() || c == '.' || c == '-'
 }
@@ -69,30 +106,116 @@ pub enum ConfigError {
     Invalid(#[from] serde_json::Error),
 }
 
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct UserColor(pub Color);
+pub struct UserColorVisitor;
+
+impl<'de> Visitor<'de> for UserColorVisitor {
+    type Value = UserColor;
+
+    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("a valid color")
+    }
+
+    fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+    where
+        E: SerdeError,
+    {
+        match value {
+            "none" => Ok(UserColor(Color::Reset)),
+            "red" => Ok(UserColor(Color::Red)),
+            "black" => Ok(UserColor(Color::Black)),
+            "green" => Ok(UserColor(Color::Green)),
+            "yellow" => Ok(UserColor(Color::Yellow)),
+            "blue" => Ok(UserColor(Color::Blue)),
+            "magenta" => Ok(UserColor(Color::Magenta)),
+            "cyan" => Ok(UserColor(Color::Cyan)),
+            "gray" => Ok(UserColor(Color::Gray)),
+            "dark-gray" => Ok(UserColor(Color::DarkGray)),
+            "light-red" => Ok(UserColor(Color::LightRed)),
+            "light-green" => Ok(UserColor(Color::LightGreen)),
+            "light-yellow" => Ok(UserColor(Color::LightYellow)),
+            "light-blue" => Ok(UserColor(Color::LightBlue)),
+            "light-magenta" => Ok(UserColor(Color::LightMagenta)),
+            "light-cyan" => Ok(UserColor(Color::LightCyan)),
+            "white" => Ok(UserColor(Color::White)),
+            _ => Err(E::custom("Could not parse color")),
+        }
+    }
+}
+
+impl<'de> Deserialize<'de> for UserColor {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_str(UserColorVisitor)
+    }
+}
+
+#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
+pub struct UserDisplayTunables {
+    pub color: Option<UserColor>,
+    pub name: Option<String>,
+}
+
+pub type UserOverrides = HashMap<OwnedUserId, UserDisplayTunables>;
+
+fn merge_users(a: Option<UserOverrides>, b: Option<UserOverrides>) -> Option<UserOverrides> {
+    match (a, b) {
+        (Some(a), None) => Some(a),
+        (None, Some(b)) => Some(b),
+        (Some(mut a), Some(b)) => {
+            for (k, v) in b {
+                a.insert(k, v);
+            }
+
+            Some(a)
+        },
+        (None, None) => None,
+    }
+}
+
 #[derive(Clone)]
 pub struct TunableValues {
-    pub typing_notice: bool,
+    pub read_receipt_send: bool,
+    pub read_receipt_display: bool,
+    pub typing_notice_send: bool,
     pub typing_notice_display: bool,
+    pub users: UserOverrides,
+    pub default_room: Option<String>,
 }
 
 #[derive(Clone, Default, Deserialize)]
 pub struct Tunables {
-    pub typing_notice: Option<bool>,
+    pub read_receipt_send: Option<bool>,
+    pub read_receipt_display: Option<bool>,
+    pub typing_notice_send: Option<bool>,
     pub typing_notice_display: Option<bool>,
+    pub users: Option<UserOverrides>,
+    pub default_room: Option<String>,
 }
 
 impl Tunables {
     fn merge(self, other: Self) -> Self {
         Tunables {
-            typing_notice: self.typing_notice.or(other.typing_notice),
+            read_receipt_send: self.read_receipt_send.or(other.read_receipt_send),
+            read_receipt_display: self.read_receipt_display.or(other.read_receipt_display),
+            typing_notice_send: self.typing_notice_send.or(other.typing_notice_send),
             typing_notice_display: self.typing_notice_display.or(other.typing_notice_display),
+            users: merge_users(self.users, other.users),
+            default_room: self.default_room.or(other.default_room),
         }
     }
 
     fn values(self) -> TunableValues {
         TunableValues {
-            typing_notice: self.typing_notice.unwrap_or(true),
+            read_receipt_send: self.read_receipt_send.unwrap_or(true),
-            typing_notice_display: self.typing_notice.unwrap_or(true),
+            read_receipt_display: self.read_receipt_display.unwrap_or(true),
+            typing_notice_send: self.typing_notice_send.unwrap_or(true),
+            typing_notice_display: self.typing_notice_display.unwrap_or(true),
+            users: self.users.unwrap_or_default(),
+            default_room: self.default_room,
         }
     }
 }
@@ -123,7 +246,11 @@ impl Directories {
     fn values(self) -> DirectoryValues {
         let cache = self
             .cache
-            .or_else(dirs::cache_dir)
+            .or_else(|| {
+                let mut dir = dirs::cache_dir()?;
+                dir.push("iamb");
+                dir.into()
+            })
             .expect("no dirs.cache value configured!");
 
         let logs = self.logs.unwrap_or_else(|| {
@@ -255,11 +382,49 @@ impl ApplicationSettings {
 
         Ok(settings)
     }
+
+    pub fn get_user_char_span<'a>(&self, user_id: &'a UserId) -> Span<'a> {
+        let (color, c) = self
+            .tunables
+            .users
+            .get(user_id)
+            .map(|user| {
+                (
+                    user.color.as_ref().map(|c| c.0),
+                    user.name.as_ref().and_then(|s| s.chars().next()),
+                )
+            })
+            .unwrap_or_default();
+
+        let color = color.unwrap_or_else(|| user_color(user_id.as_str()));
+        let style = user_style_from_color(color);
+
+        let c = c.unwrap_or_else(|| user_id.localpart().chars().next().unwrap_or(' '));
+
+        Span::styled(String::from(c), style)
+    }
+
+    pub fn get_user_span<'a>(&self, user_id: &'a UserId) -> Span<'a> {
+        let (color, name) = self
+            .tunables
+            .users
+            .get(user_id)
+            .map(|user| (user.color.as_ref().map(|c| c.0), user.name.clone().map(Cow::Owned)))
+            .unwrap_or_default();
+
+        let user_id = user_id.as_str();
+        let color = color.unwrap_or_else(|| user_color(user_id));
+        let style = user_style_from_color(color);
+        let name = name.unwrap_or(Cow::Borrowed(user_id));
+
+        Span::styled(name, style)
+    }
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
+    use matrix_sdk::ruma::user_id;
 
     #[test]
     fn test_profile_name_invalid() {
@@ -283,4 +448,74 @@ mod tests {
         assert_eq!(validate_profile_name("a.b-c"), true);
         assert_eq!(validate_profile_name("a.B-c"), true);
     }
+
+    #[test]
+    fn test_merge_users() {
+        let a = None;
+        let b = vec![(user_id!("@a:b.c").to_owned(), UserDisplayTunables {
+            color: Some(UserColor(Color::Red)),
+            name: Some("Hello".into()),
+        })]
+        .into_iter()
+        .collect::<HashMap<_, _>>();
+        let c = vec![(user_id!("@a:b.c").to_owned(), UserDisplayTunables {
+            color: Some(UserColor(Color::Green)),
+            name: Some("World".into()),
+        })]
+        .into_iter()
+        .collect::<HashMap<_, _>>();
+
+        let res = merge_users(a.clone(), a.clone());
+        assert_eq!(res, None);
+
+        let res = merge_users(a.clone(), Some(b.clone()));
+        assert_eq!(res, Some(b.clone()));
+
+        let res = merge_users(Some(b.clone()), a.clone());
+        assert_eq!(res, Some(b.clone()));
+
+        let res = merge_users(Some(b.clone()), Some(b.clone()));
+        assert_eq!(res, Some(b.clone()));
+
+        let res = merge_users(Some(b.clone()), Some(c.clone()));
+        assert_eq!(res, Some(c.clone()));
+
+        let res = merge_users(Some(c.clone()), Some(b.clone()));
+        assert_eq!(res, Some(b.clone()));
+    }
+
+    #[test]
+    fn test_parse_tunables() {
+        let res: Tunables = serde_json::from_str("{}").unwrap();
+        assert_eq!(res.typing_notice_send, None);
+        assert_eq!(res.typing_notice_display, None);
+        assert_eq!(res.users, None);
+
+        let res: Tunables = serde_json::from_str("{\"typing_notice_send\": true}").unwrap();
+        assert_eq!(res.typing_notice_send, Some(true));
+        assert_eq!(res.typing_notice_display, None);
+        assert_eq!(res.users, None);
+
+        let res: Tunables = serde_json::from_str("{\"typing_notice_send\": false}").unwrap();
+        assert_eq!(res.typing_notice_send, Some(false));
+        assert_eq!(res.typing_notice_display, None);
+        assert_eq!(res.users, None);
+
+        let res: Tunables = serde_json::from_str("{\"users\": {}}").unwrap();
+        assert_eq!(res.typing_notice_send, None);
+        assert_eq!(res.typing_notice_display, None);
+        assert_eq!(res.users, Some(HashMap::new()));
+
+        let res: Tunables = serde_json::from_str(
+            "{\"users\": {\"@a:b.c\": {\"color\": \"black\", \"name\": \"Tim\"}}}",
+        )
+        .unwrap();
+        assert_eq!(res.typing_notice_send, None);
+        assert_eq!(res.typing_notice_display, None);
+        let users = vec![(user_id!("@a:b.c").to_owned(), UserDisplayTunables {
+            color: Some(UserColor(Color::Black)),
+            name: Some("Tim".into()),
+        })];
+        assert_eq!(res.users, Some(users.into_iter().collect()));
+    }
 }

src/main.rs

@@ -9,6 +9,7 @@ use std::fs::{create_dir_all, File};
 use std::io::{stdout, BufReader, Stdout};
 use std::ops::DerefMut;
 use std::process;
+use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Arc;
 use std::time::Duration;
 
@@ -41,6 +42,7 @@ mod commands;
 mod config;
 mod keybindings;
 mod message;
+mod util;
 mod windows;
 mod worker;
 
@@ -63,7 +65,6 @@ use crate::{
         ProgramStore,
     },
     config::{ApplicationSettings, Iamb},
-    message::{Message, MessageContent, MessageTimeStamp},
     windows::IambWindow,
     worker::{ClientWorker, LoginStyle, Requester},
 };
@@ -99,6 +100,14 @@ use modalkit::{
     },
 };
 
+const MIN_MSG_LOAD: u32 = 50;
+
+fn msg_load_req(area: Rect) -> u32 {
+    let n = area.height as u32;
+
+    n.max(MIN_MSG_LOAD)
+}
+
 struct Application {
     store: AsyncProgramStore,
     worker: Requester,
@@ -129,7 +138,14 @@ impl Application {
         let cmds = crate::commands::setup_commands();
 
         let mut locked = store.lock().await;
-        let win = IambWindow::open(IambId::Welcome, locked.deref_mut()).unwrap();
+
+        let win = settings
+            .tunables
+            .default_room
+            .and_then(|room| IambWindow::find(room, locked.deref_mut()).ok())
+            .or_else(|| IambWindow::open(IambId::Welcome, locked.deref_mut()).ok())
+            .unwrap();
+
         let cmd = CommandBarState::new(IambBufferId::Command, locked.deref_mut());
         let screen = ScreenState::new(win, cmd);
 
@@ -176,7 +192,7 @@ impl Application {
                 f.set_cursor(cx, cy);
             }
 
-            store.application.load_older(area.height as u32);
+            store.application.load_older(msg_load_req(area));
         })?;
 
         Ok(())
@@ -186,7 +202,8 @@ impl Application {
         loop {
             self.redraw(false, self.store.clone().lock().await.deref_mut())?;
 
-            if !poll(Duration::from_millis(500))? {
+            if !poll(Duration::from_secs(1))? {
+                // Redraw in case there's new messages to show.
                 continue;
             }
 
@@ -226,7 +243,7 @@ impl Application {
         }
     }
 
-    fn action_run(
+    async fn action_run(
         &mut self,
         action: ProgramAction,
         ctx: ProgramContext,
@@ -257,7 +274,7 @@ impl Application {
             },
 
             // Simple delegations.
-            Action::Application(act) => self.iamb_run(act, ctx, store)?,
+            Action::Application(act) => self.iamb_run(act, ctx, store).await?,
             Action::CommandBar(act) => self.screen.command_bar(&act, &ctx)?,
             Action::Macro(act) => self.bindings.macro_command(&act, &ctx, store)?,
             Action::Scroll(style) => self.screen.scroll(&style, &ctx, store)?,
@@ -314,7 +331,7 @@ impl Application {
         return Ok(info);
     }
 
-    fn iamb_run(
+    async fn iamb_run(
         &mut self,
         action: IambAction,
         ctx: ProgramContext,
@@ -327,24 +344,19 @@ impl Application {
                 None
             },
 
+            IambAction::Message(act) => {
+                self.screen.current_window_mut()?.message_command(act, ctx, store).await?
+            },
             IambAction::Room(act) => {
-                let acts = self.screen.current_window_mut()?.room_command(act, ctx, store)?;
+                let acts = self.screen.current_window_mut()?.room_command(act, ctx, store).await?;
                 self.action_prepend(acts);
 
                 None
             },
-
+            IambAction::Send(act) => {
-            IambAction::SendMessage(room_id, msg) => {
+                self.screen.current_window_mut()?.send_command(act, ctx, store).await?
-                let (event_id, msg) = self.worker.send_message(room_id.clone(), msg)?;
-                let user = store.application.settings.profile.user_id.clone();
-                let info = store.application.get_room_info(room_id);
-                let key = (MessageTimeStamp::LocalEcho, event_id);
-                let msg = MessageContent::Original(msg.into());
-                let msg = Message::new(msg, user, MessageTimeStamp::LocalEcho);
-                info.messages.insert(key, msg);
-
-                None
             },
+
             IambAction::Verify(act, user_dev) => {
                 if let Some(sas) = store.application.verifications.get(&user_dev) {
                     self.worker.verify(act, sas.clone())?
@@ -378,7 +390,7 @@ impl Application {
             let mut keyskip = false;
 
             while let Some((action, ctx)) = self.action_pop(keyskip) {
-                match self.action_run(action, ctx, locked.deref_mut()) {
+                match self.action_run(action, ctx, locked.deref_mut()).await {
                     Ok(None) => {
                         // Continue processing.
                         continue;
@@ -408,7 +420,7 @@ impl Application {
     }
 }
 
-fn login(worker: Requester, settings: &ApplicationSettings) -> IambResult<()> {
+async fn login(worker: Requester, settings: &ApplicationSettings) -> IambResult<()> {
     println!("Logging in for {}...", settings.profile.user_id);
 
     if settings.session_json.is_file() {
@@ -447,38 +459,15 @@ fn print_exit<T: Display, N>(v: T) -> N {
     process::exit(2);
 }
 
-#[tokio::main]
+async fn run(settings: ApplicationSettings) -> IambResult<()> {
-async fn main() -> IambResult<()> {
-    // Parse command-line flags.
-    let iamb = Iamb::parse();
-
-    // Load configuration and set up the Matrix SDK.
-    let settings = ApplicationSettings::load(iamb).unwrap_or_else(print_exit);
-
-    // Set up the tracing subscriber so we can log client messages.
-    let log_prefix = format!("iamb-log-{}", settings.profile_name);
-    let log_dir = settings.dirs.logs.as_path();
-
-    create_dir_all(settings.matrix_dir.as_path())?;
-    create_dir_all(log_dir)?;
-
-    let appender = tracing_appender::rolling::daily(log_dir, log_prefix);
-    let (appender, _) = tracing_appender::non_blocking(appender);
-
-    let subscriber = FmtSubscriber::builder()
-        .with_writer(appender)
-        .with_max_level(Level::WARN)
-        .finish();
-    tracing::subscriber::set_global_default(subscriber).expect("setting default subscriber failed");
-
     // Set up the async worker thread and global store.
-    let worker = ClientWorker::spawn(settings.clone());
+    let worker = ClientWorker::spawn(settings.clone()).await;
     let store = ChatStore::new(worker.clone(), settings.clone());
     let store = Store::new(store);
     let store = Arc::new(AsyncMutex::new(store));
     worker.init(store.clone());
 
-    login(worker, &settings).unwrap_or_else(print_exit);
+    login(worker, &settings).await.unwrap_or_else(print_exit);
 
     // Make sure panics clean up the terminal properly.
     let orig_hook = std::panic::take_hook();
@@ -495,5 +484,44 @@ async fn main() -> IambResult<()> {
     // We can now run the application.
     application.run().await?;
 
+    Ok(())
+}
+
+fn main() -> IambResult<()> {
+    // Parse command-line flags.
+    let iamb = Iamb::parse();
+
+    // Load configuration and set up the Matrix SDK.
+    let settings = ApplicationSettings::load(iamb).unwrap_or_else(print_exit);
+
+    // Set up the tracing subscriber so we can log client messages.
+    let log_prefix = format!("iamb-log-{}", settings.profile_name);
+    let log_dir = settings.dirs.logs.as_path();
+
+    create_dir_all(settings.matrix_dir.as_path())?;
+    create_dir_all(log_dir)?;
+
+    let appender = tracing_appender::rolling::daily(log_dir, log_prefix);
+    let (appender, guard) = tracing_appender::non_blocking(appender);
+
+    let subscriber = FmtSubscriber::builder()
+        .with_writer(appender)
+        .with_max_level(Level::TRACE)
+        .finish();
+    tracing::subscriber::set_global_default(subscriber).expect("setting default subscriber failed");
+
+    let rt = tokio::runtime::Builder::new_multi_thread()
+        .enable_all()
+        .thread_name_fn(|| {
+            static ATOMIC_ID: AtomicUsize = AtomicUsize::new(0);
+            let id = ATOMIC_ID.fetch_add(1, Ordering::SeqCst);
+            format!("iamb-worker-{}", id)
+        })
+        .build()
+        .unwrap();
+
+    rt.block_on(async move { run(settings).await })?;
+
+    drop(guard);
     process::exit(0);
 }

src/message.rs

@@ -1,650 +0,0 @@
-use std::borrow::Cow;
-use std::cmp::{Ord, Ordering, PartialOrd};
-use std::collections::hash_map::DefaultHasher;
-use std::collections::BTreeMap;
-use std::convert::TryFrom;
-use std::hash::{Hash, Hasher};
-use std::str::Lines;
-
-use chrono::{DateTime, NaiveDateTime, Utc};
-use unicode_segmentation::UnicodeSegmentation;
-use unicode_width::UnicodeWidthStr;
-
-use matrix_sdk::ruma::{
-    events::{
-        room::message::{MessageType, RoomMessageEventContent},
-        MessageLikeEvent,
-    },
-    MilliSecondsSinceUnixEpoch,
-    OwnedEventId,
-    OwnedUserId,
-    UInt,
-};
-
-use modalkit::tui::{
-    style::{Color, Modifier as StyleModifier, Style},
-    text::{Span, Spans, Text},
-};
-
-use modalkit::editing::{base::ViewportContext, cursor::Cursor};
-
-use crate::base::{IambResult, RoomInfo};
-
-pub type MessageEvent = MessageLikeEvent<RoomMessageEventContent>;
-pub type MessageFetchResult = IambResult<(Option<String>, Vec<MessageEvent>)>;
-pub type MessageKey = (MessageTimeStamp, OwnedEventId);
-pub type Messages = BTreeMap<MessageKey, Message>;
-
-const COLORS: [Color; 13] = [
-    Color::Blue,
-    Color::Cyan,
-    Color::Green,
-    Color::LightBlue,
-    Color::LightGreen,
-    Color::LightCyan,
-    Color::LightMagenta,
-    Color::LightRed,
-    Color::LightYellow,
-    Color::Magenta,
-    Color::Red,
-    Color::Reset,
-    Color::Yellow,
-];
-
-const USER_GUTTER: usize = 30;
-const TIME_GUTTER: usize = 12;
-const MIN_MSG_LEN: usize = 30;
-
-const USER_GUTTER_EMPTY: &str = "                              ";
-const USER_GUTTER_EMPTY_SPAN: Span<'static> = Span {
-    content: Cow::Borrowed(USER_GUTTER_EMPTY),
-    style: Style {
-        fg: None,
-        bg: None,
-        add_modifier: StyleModifier::empty(),
-        sub_modifier: StyleModifier::empty(),
-    },
-};
-
-pub(crate) fn user_color(user: &str) -> Color {
-    let mut hasher = DefaultHasher::new();
-    user.hash(&mut hasher);
-    let color = hasher.finish() as usize % COLORS.len();
-
-    COLORS[color]
-}
-
-pub(crate) fn user_style(user: &str) -> Style {
-    Style::default().fg(user_color(user)).add_modifier(StyleModifier::BOLD)
-}
-
-struct WrappedLinesIterator<'a> {
-    iter: Lines<'a>,
-    curr: Option<&'a str>,
-    width: usize,
-}
-
-impl<'a> WrappedLinesIterator<'a> {
-    fn new(input: &'a str, width: usize) -> Self {
-        WrappedLinesIterator { iter: input.lines(), curr: None, width }
-    }
-}
-
-impl<'a> Iterator for WrappedLinesIterator<'a> {
-    type Item = (&'a str, usize);
-
-    fn next(&mut self) -> Option<Self::Item> {
-        if self.curr.is_none() {
-            self.curr = self.iter.next();
-        }
-
-        if let Some(s) = self.curr.take() {
-            let width = UnicodeWidthStr::width(s);
-
-            if width <= self.width {
-                return Some((s, width));
-            } else {
-                // Find where to split the line.
-                let mut width = 0;
-                let mut idx = 0;
-
-                for (i, g) in UnicodeSegmentation::grapheme_indices(s, true) {
-                    let gw = UnicodeWidthStr::width(g);
-                    idx = i;
-
-                    if width + gw > self.width {
-                        break;
-                    }
-
-                    width += gw;
-                }
-
-                self.curr = Some(&s[idx..]);
-
-                return Some((&s[..idx], width));
-            }
-        } else {
-            return None;
-        }
-    }
-}
-
-fn wrap(input: &str, width: usize) -> WrappedLinesIterator<'_> {
-    WrappedLinesIterator::new(input, width)
-}
-
-fn space(width: usize) -> String {
-    " ".repeat(width)
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum TimeStampIntError {
-    #[error("Integer conversion error: {0}")]
-    IntError(#[from] std::num::TryFromIntError),
-
-    #[error("UInt conversion error: {0}")]
-    UIntError(<UInt as TryFrom<u64>>::Error),
-}
-
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub enum MessageTimeStamp {
-    OriginServer(UInt),
-    LocalEcho,
-}
-
-impl MessageTimeStamp {
-    fn show(&self) -> Option<Span> {
-        match self {
-            MessageTimeStamp::OriginServer(ts) => {
-                let time = i64::from(*ts) / 1000;
-                let time = NaiveDateTime::from_timestamp_opt(time, 0)?;
-                let time = DateTime::<Utc>::from_utc(time, Utc);
-                let time = time.format("%T");
-                let time = format!("  [{}]", time);
-
-                Span::raw(time).into()
-            },
-            MessageTimeStamp::LocalEcho => None,
-        }
-    }
-
-    fn is_local_echo(&self) -> bool {
-        matches!(self, MessageTimeStamp::LocalEcho)
-    }
-}
-
-impl Ord for MessageTimeStamp {
-    fn cmp(&self, other: &Self) -> Ordering {
-        match (self, other) {
-            (MessageTimeStamp::OriginServer(_), MessageTimeStamp::LocalEcho) => Ordering::Less,
-            (MessageTimeStamp::OriginServer(a), MessageTimeStamp::OriginServer(b)) => a.cmp(b),
-            (MessageTimeStamp::LocalEcho, MessageTimeStamp::OriginServer(_)) => Ordering::Greater,
-            (MessageTimeStamp::LocalEcho, MessageTimeStamp::LocalEcho) => Ordering::Equal,
-        }
-    }
-}
-
-impl PartialOrd for MessageTimeStamp {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.cmp(other).into()
-    }
-}
-
-impl From<MilliSecondsSinceUnixEpoch> for MessageTimeStamp {
-    fn from(millis: MilliSecondsSinceUnixEpoch) -> Self {
-        MessageTimeStamp::OriginServer(millis.0)
-    }
-}
-
-impl TryFrom<&MessageTimeStamp> for usize {
-    type Error = TimeStampIntError;
-
-    fn try_from(ts: &MessageTimeStamp) -> Result<Self, Self::Error> {
-        let n = match ts {
-            MessageTimeStamp::LocalEcho => 0,
-            MessageTimeStamp::OriginServer(u) => usize::try_from(u64::from(*u))?,
-        };
-
-        Ok(n)
-    }
-}
-
-impl TryFrom<usize> for MessageTimeStamp {
-    type Error = TimeStampIntError;
-
-    fn try_from(u: usize) -> Result<Self, Self::Error> {
-        if u == 0 {
-            Ok(MessageTimeStamp::LocalEcho)
-        } else {
-            let n = u64::try_from(u)?;
-            let n = UInt::try_from(n).map_err(TimeStampIntError::UIntError)?;
-
-            Ok(MessageTimeStamp::OriginServer(n))
-        }
-    }
-}
-
-#[derive(Clone, Debug, Default, Eq, PartialEq)]
-pub struct MessageCursor {
-    /// When timestamp is None, the corner is determined by moving backwards from
-    /// the most recently received message.
-    pub timestamp: Option<MessageKey>,
-
-    /// A row within the [Text] representation of a [Message].
-    pub text_row: usize,
-}
-
-impl MessageCursor {
-    pub fn new(timestamp: MessageKey, text_row: usize) -> Self {
-        MessageCursor { timestamp: Some(timestamp), text_row }
-    }
-
-    /// Get a cursor that refers to the most recent message.
-    pub fn latest() -> Self {
-        MessageCursor::default()
-    }
-
-    pub fn to_key<'a>(&'a self, info: &'a RoomInfo) -> Option<&'a MessageKey> {
-        if let Some(ref key) = self.timestamp {
-            Some(key)
-        } else {
-            Some(info.messages.last_key_value()?.0)
-        }
-    }
-
-    pub fn from_cursor(cursor: &Cursor, info: &RoomInfo) -> Option<Self> {
-        let ev_hash = u64::try_from(cursor.get_x()).ok()?;
-        let ev_term = OwnedEventId::try_from("$").ok()?;
-
-        let ts_start = MessageTimeStamp::try_from(cursor.get_y()).ok()?;
-        let start = (ts_start, ev_term);
-        let mut mc = None;
-
-        for ((ts, event_id), _) in info.messages.range(start..) {
-            let mut hasher = DefaultHasher::new();
-            event_id.hash(&mut hasher);
-
-            if hasher.finish() == ev_hash {
-                mc = Self::from((*ts, event_id.clone())).into();
-                break;
-            }
-
-            if mc.is_none() {
-                mc = Self::from((*ts, event_id.clone())).into();
-            }
-
-            if ts > &ts_start {
-                break;
-            }
-        }
-
-        return mc;
-    }
-
-    pub fn to_cursor(&self, info: &RoomInfo) -> Option<Cursor> {
-        let (ts, event_id) = self.to_key(info)?;
-
-        let y: usize = usize::try_from(ts).ok()?;
-
-        let mut hasher = DefaultHasher::new();
-        event_id.hash(&mut hasher);
-        let x = usize::try_from(hasher.finish()).ok()?;
-
-        Cursor::new(y, x).into()
-    }
-}
-
-impl From<Option<MessageKey>> for MessageCursor {
-    fn from(key: Option<MessageKey>) -> Self {
-        MessageCursor { timestamp: key, text_row: 0 }
-    }
-}
-
-impl From<MessageKey> for MessageCursor {
-    fn from(key: MessageKey) -> Self {
-        MessageCursor { timestamp: Some(key), text_row: 0 }
-    }
-}
-
-impl Ord for MessageCursor {
-    fn cmp(&self, other: &Self) -> Ordering {
-        match (&self.timestamp, &other.timestamp) {
-            (None, None) => self.text_row.cmp(&other.text_row),
-            (None, Some(_)) => Ordering::Greater,
-            (Some(_), None) => Ordering::Less,
-            (Some(st), Some(ot)) => {
-                let pcmp = st.cmp(ot);
-                let tcmp = self.text_row.cmp(&other.text_row);
-
-                pcmp.then(tcmp)
-            },
-        }
-    }
-}
-
-impl PartialOrd for MessageCursor {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.cmp(other).into()
-    }
-}
-
-#[derive(Clone)]
-pub enum MessageContent {
-    Original(Box<RoomMessageEventContent>),
-    Redacted,
-}
-
-impl AsRef<str> for MessageContent {
-    fn as_ref(&self) -> &str {
-        match self {
-            MessageContent::Original(ev) => {
-                match &ev.msgtype {
-                    MessageType::Text(content) => {
-                        return content.body.as_ref();
-                    },
-                    MessageType::Emote(content) => {
-                        return content.body.as_ref();
-                    },
-                    MessageType::Notice(content) => {
-                        return content.body.as_str();
-                    },
-                    MessageType::ServerNotice(_) => {
-                        // XXX: implement
-
-                        return "[server notice]";
-                    },
-                    MessageType::VerificationRequest(_) => {
-                        // XXX: implement
-
-                        return "[verification request]";
-                    },
-                    MessageType::Audio(..) => {
-                        return "[audio]";
-                    },
-                    MessageType::File(..) => {
-                        return "[file]";
-                    },
-                    MessageType::Image(..) => {
-                        return "[image]";
-                    },
-                    MessageType::Video(..) => {
-                        return "[video]";
-                    },
-                    _ => return "[unknown message type]",
-                }
-            },
-            MessageContent::Redacted => "[redacted]",
-        }
-    }
-}
-
-#[derive(Clone)]
-pub struct Message {
-    pub content: MessageContent,
-    pub sender: OwnedUserId,
-    pub timestamp: MessageTimeStamp,
-}
-
-impl Message {
-    pub fn new(content: MessageContent, sender: OwnedUserId, timestamp: MessageTimeStamp) -> Self {
-        Message { content, sender, timestamp }
-    }
-
-    pub fn show(&self, selected: bool, vwctx: &ViewportContext<MessageCursor>) -> Text {
-        let width = vwctx.get_width();
-        let msg = self.as_ref();
-
-        let mut lines = vec![];
-
-        let mut style = Style::default();
-
-        if selected {
-            style = style.add_modifier(StyleModifier::REVERSED)
-        }
-
-        if self.timestamp.is_local_echo() {
-            style = style.add_modifier(StyleModifier::ITALIC);
-        }
-
-        if USER_GUTTER + TIME_GUTTER + MIN_MSG_LEN <= width {
-            let lw = width - USER_GUTTER - TIME_GUTTER;
-
-            for (i, (line, w)) in wrap(msg, lw).enumerate() {
-                let line = Span::styled(line, style);
-                let trailing = Span::styled(space(lw.saturating_sub(w)), style);
-
-                if i == 0 {
-                    let user = self.show_sender(true);
-
-                    if let Some(time) = self.timestamp.show() {
-                        lines.push(Spans(vec![user, line, trailing, time]))
-                    } else {
-                        lines.push(Spans(vec![user, line, trailing]))
-                    }
-                } else {
-                    let space = USER_GUTTER_EMPTY_SPAN;
-
-                    lines.push(Spans(vec![space, line, trailing]))
-                }
-            }
-        } else if USER_GUTTER + MIN_MSG_LEN <= width {
-            let lw = width - USER_GUTTER;
-
-            for (i, (line, w)) in wrap(msg, lw).enumerate() {
-                let line = Span::styled(line, style);
-                let trailing = Span::styled(space(lw.saturating_sub(w)), style);
-
-                let prefix = if i == 0 {
-                    self.show_sender(true)
-                } else {
-                    USER_GUTTER_EMPTY_SPAN
-                };
-
-                lines.push(Spans(vec![prefix, line, trailing]))
-            }
-        } else {
-            lines.push(Spans::from(self.show_sender(false)));
-
-            for (line, _) in wrap(msg, width.saturating_sub(2)) {
-                let line = format!("  {}", line);
-                let line = Span::styled(line, style);
-
-                lines.push(Spans(vec![line]))
-            }
-        }
-
-        return Text { lines };
-    }
-
-    fn show_sender(&self, align_right: bool) -> Span {
-        let sender = self.sender.to_string();
-        let style = user_style(sender.as_str());
-
-        let sender = if align_right {
-            format!("{: >width$}  ", sender, width = 28)
-        } else {
-            format!("{: <width$}  ", sender, width = 28)
-        };
-
-        Span::styled(sender, style)
-    }
-}
-
-impl From<MessageEvent> for Message {
-    fn from(event: MessageEvent) -> Self {
-        match event {
-            MessageLikeEvent::Original(ev) => {
-                let content = MessageContent::Original(ev.content.into());
-
-                Message::new(content, ev.sender, ev.origin_server_ts.into())
-            },
-            MessageLikeEvent::Redacted(ev) => {
-                Message::new(MessageContent::Redacted, ev.sender, ev.origin_server_ts.into())
-            },
-        }
-    }
-}
-
-impl AsRef<str> for Message {
-    fn as_ref(&self) -> &str {
-        self.content.as_ref()
-    }
-}
-
-impl ToString for Message {
-    fn to_string(&self) -> String {
-        self.as_ref().to_string()
-    }
-}
-
-#[cfg(test)]
-pub mod tests {
-    use super::*;
-    use crate::tests::*;
-
-    #[test]
-    fn test_wrapped_lines_ascii() {
-        let s = "hello world!\nabcdefghijklmnopqrstuvwxyz\ngoodbye";
-
-        let mut iter = wrap(s, 100);
-        assert_eq!(iter.next(), Some(("hello world!", 12)));
-        assert_eq!(iter.next(), Some(("abcdefghijklmnopqrstuvwxyz", 26)));
-        assert_eq!(iter.next(), Some(("goodbye", 7)));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = wrap(s, 5);
-        assert_eq!(iter.next(), Some(("hello", 5)));
-        assert_eq!(iter.next(), Some((" worl", 5)));
-        assert_eq!(iter.next(), Some(("d!", 2)));
-        assert_eq!(iter.next(), Some(("abcde", 5)));
-        assert_eq!(iter.next(), Some(("fghij", 5)));
-        assert_eq!(iter.next(), Some(("klmno", 5)));
-        assert_eq!(iter.next(), Some(("pqrst", 5)));
-        assert_eq!(iter.next(), Some(("uvwxy", 5)));
-        assert_eq!(iter.next(), Some(("z", 1)));
-        assert_eq!(iter.next(), Some(("goodb", 5)));
-        assert_eq!(iter.next(), Some(("ye", 2)));
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_wrapped_lines_unicode() {
-        let s = "ＣＨＩＣＫＥＮ";
-
-        let mut iter = wrap(s, 14);
-        assert_eq!(iter.next(), Some((s, 14)));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = wrap(s, 5);
-        assert_eq!(iter.next(), Some(("ＣＨ", 4)));
-        assert_eq!(iter.next(), Some(("ＩＣ", 4)));
-        assert_eq!(iter.next(), Some(("ＫＥ", 4)));
-        assert_eq!(iter.next(), Some(("Ｎ", 2)));
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_mc_cmp() {
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-
-        // Everything is equal to itself.
-        assert_eq!(mc1.cmp(&mc1), Ordering::Equal);
-        assert_eq!(mc2.cmp(&mc2), Ordering::Equal);
-        assert_eq!(mc3.cmp(&mc3), Ordering::Equal);
-        assert_eq!(mc4.cmp(&mc4), Ordering::Equal);
-        assert_eq!(mc5.cmp(&mc5), Ordering::Equal);
-
-        // Local echo is always greater than an origin server timestamp.
-        assert_eq!(mc1.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc4), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc5), Ordering::Greater);
-
-        // mc2 is the smallest timestamp.
-        assert_eq!(mc2.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc3), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc4), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc5), Ordering::Less);
-
-        // mc3 should be less than mc4 because of its event ID.
-        assert_eq!(mc3.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc3.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc3.cmp(&mc4), Ordering::Less);
-        assert_eq!(mc3.cmp(&mc5), Ordering::Less);
-
-        // mc4 should be greater than mc3 because of its event ID.
-        assert_eq!(mc4.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc4.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc4.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc4.cmp(&mc5), Ordering::Less);
-
-        // mc5 is the greatest OriginServer timestamp.
-        assert_eq!(mc5.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc5.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc5.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc5.cmp(&mc4), Ordering::Greater);
-    }
-
-    #[test]
-    fn test_mc_to_key() {
-        let info = mock_room();
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-        let mc6 = MessageCursor::latest();
-
-        let k1 = mc1.to_key(&info).unwrap();
-        let k2 = mc2.to_key(&info).unwrap();
-        let k3 = mc3.to_key(&info).unwrap();
-        let k4 = mc4.to_key(&info).unwrap();
-        let k5 = mc5.to_key(&info).unwrap();
-        let k6 = mc6.to_key(&info).unwrap();
-
-        // These should all be equal to their MSGN_KEYs.
-        assert_eq!(k1, &MSG1_KEY.clone());
-        assert_eq!(k2, &MSG2_KEY.clone());
-        assert_eq!(k3, &MSG3_KEY.clone());
-        assert_eq!(k4, &MSG4_KEY.clone());
-        assert_eq!(k5, &MSG5_KEY.clone());
-
-        // MessageCursor::latest() turns into the largest key (our local echo message).
-        assert_eq!(k6, &MSG1_KEY.clone());
-
-        // MessageCursor::latest() fails to convert for a room w/o messages.
-        let info_empty = RoomInfo::default();
-        assert_eq!(mc6.to_key(&info_empty), None);
-    }
-
-    #[test]
-    fn test_mc_to_from_cursor() {
-        let info = mock_room();
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-        let mc6 = MessageCursor::latest();
-
-        let identity = |mc: &MessageCursor| {
-            let c = mc.to_cursor(&info).unwrap();
-
-            MessageCursor::from_cursor(&c, &info).unwrap()
-        };
-
-        // These should all convert to a Cursor and back to the original value.
-        assert_eq!(identity(&mc1), mc1);
-        assert_eq!(identity(&mc2), mc2);
-        assert_eq!(identity(&mc3), mc3);
-        assert_eq!(identity(&mc4), mc4);
-        assert_eq!(identity(&mc5), mc5);
-
-        // MessageCursor::latest() should point at the most recent message after conversion.
-        assert_eq!(identity(&mc6), mc1);
-    }
-}

src/message/html.rs

@@ -0,0 +1,942 @@
+//! # Rendering for formatted bodies
+//!
+//! This module contains the code for rendering messages that contained an
+//! "org.matrix.custom.html"-formatted body.
+//!
+//! The Matrix specification recommends limiting rendered tags and attributes to a safe subset of
+//! HTML. You can read more in section 11.2.1.1, "m.room.message msgtypes":
+//!
+//!   https://spec.matrix.org/unstable/client-server-api/#mroommessage-msgtypes
+//!
+//! This isn't as important for iamb, since it isn't a browser environment, but we do still map
+//! input onto an enum of the safe list of tags to keep it easy to understand and process.
+use std::ops::Deref;
+
+use css_color_parser::Color as CssColor;
+use markup5ever_rcdom::{Handle, NodeData, RcDom};
+use unicode_segmentation::UnicodeSegmentation;
+
+use html5ever::{
+    driver::{parse_fragment, ParseOpts},
+    interface::{Attribute, QualName},
+    local_name,
+    namespace_url,
+    ns,
+    tendril::{StrTendril, TendrilSink},
+};
+
+use modalkit::tui::{
+    layout::Alignment,
+    style::{Color, Modifier as StyleModifier, Style},
+    symbols::line,
+    text::{Span, Spans, Text},
+};
+
+use crate::{
+    message::printer::TextPrinter,
+    util::{join_cell_text, space_text},
+};
+
+struct BulletIterator {
+    style: ListStyle,
+    pos: usize,
+    len: usize,
+}
+
+impl BulletIterator {
+    fn width(&self) -> usize {
+        match self.style {
+            ListStyle::Unordered => 2,
+            ListStyle::Ordered => self.len.to_string().len() + 2,
+        }
+    }
+}
+
+impl Iterator for BulletIterator {
+    type Item = String;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.pos == self.len {
+            return None;
+        }
+
+        self.pos += 1;
+
+        let bullet = match self.style {
+            ListStyle::Unordered => "- ".to_string(),
+            ListStyle::Ordered => {
+                let w = self.len.to_string().len();
+                format!("{: >w$}. ", self.pos, w = w)
+            },
+        };
+
+        return Some(bullet);
+    }
+}
+
+#[derive(Clone, Copy, Debug)]
+pub enum ListStyle {
+    Ordered,
+    Unordered,
+}
+
+impl ListStyle {
+    fn bullets(&self, len: usize) -> BulletIterator {
+        BulletIterator { style: *self, pos: 0, len }
+    }
+}
+
+pub type StyleTreeChildren = Vec<StyleTreeNode>;
+
+pub enum CellType {
+    Data,
+    Header,
+}
+
+pub struct TableRow {
+    cells: Vec<(CellType, StyleTreeNode)>,
+}
+
+impl TableRow {
+    fn columns(&self) -> usize {
+        self.cells.len()
+    }
+}
+
+pub struct TableSection {
+    rows: Vec<TableRow>,
+}
+
+impl TableSection {
+    fn columns(&self) -> usize {
+        self.rows.iter().map(TableRow::columns).max().unwrap_or(0)
+    }
+}
+
+pub struct Table {
+    caption: Option<Box<StyleTreeNode>>,
+    sections: Vec<TableSection>,
+}
+
+impl Table {
+    fn columns(&self) -> usize {
+        self.sections.iter().map(TableSection::columns).max().unwrap_or(0)
+    }
+
+    fn to_text(&self, width: usize, style: Style) -> Text {
+        let mut text = Text::default();
+        let columns = self.columns();
+        let cell_total = width.saturating_sub(columns).saturating_sub(1);
+        let cell_min = cell_total / columns;
+        let mut cell_slop = cell_total - cell_min * columns;
+        let cell_widths = (0..columns)
+            .into_iter()
+            .map(|_| {
+                let slopped = cell_slop.min(1);
+                cell_slop -= slopped;
+                cell_min + slopped
+            })
+            .collect::<Vec<_>>();
+
+        let mut nrows = 0;
+
+        if let Some(caption) = &self.caption {
+            let subw = width.saturating_sub(6);
+            let mut printer = TextPrinter::new(subw, style, true).align(Alignment::Center);
+            caption.print(&mut printer, style);
+
+            for mut line in printer.finish().lines {
+                line.0.insert(0, Span::styled("   ", style));
+                line.0.push(Span::styled("   ", style));
+                text.lines.push(line);
+            }
+        }
+
+        for section in self.sections.iter() {
+            for row in section.rows.iter() {
+                let mut ruler = String::new();
+
+                for (i, w) in cell_widths.iter().enumerate() {
+                    let cross = match (nrows, i) {
+                        (0, 0) => line::TOP_LEFT,
+                        (0, _) => line::HORIZONTAL_DOWN,
+                        (_, 0) => line::VERTICAL_RIGHT,
+                        (_, _) => line::CROSS,
+                    };
+
+                    ruler.push_str(cross);
+
+                    for _ in 0..*w {
+                        ruler.push_str(line::HORIZONTAL);
+                    }
+                }
+
+                if nrows == 0 {
+                    ruler.push_str(line::TOP_RIGHT);
+                } else {
+                    ruler.push_str(line::VERTICAL_LEFT);
+                }
+
+                text.lines.push(Spans(vec![Span::styled(ruler, style)]));
+
+                let cells = cell_widths
+                    .iter()
+                    .enumerate()
+                    .map(|(i, w)| {
+                        let text = if let Some((kind, cell)) = row.cells.get(i) {
+                            let style = match kind {
+                                CellType::Header => style.add_modifier(StyleModifier::BOLD),
+                                CellType::Data => style,
+                            };
+
+                            cell.to_text(*w, style)
+                        } else {
+                            space_text(*w, style)
+                        };
+
+                        (text, *w)
+                    })
+                    .collect();
+
+                let joined = join_cell_text(cells, Span::styled(line::VERTICAL, style), style);
+                text.lines.extend(joined.lines);
+
+                nrows += 1;
+            }
+        }
+
+        if nrows > 0 {
+            let mut ruler = String::new();
+
+            for (i, w) in cell_widths.iter().enumerate() {
+                let cross = if i == 0 {
+                    line::BOTTOM_LEFT
+                } else {
+                    line::HORIZONTAL_UP
+                };
+
+                ruler.push_str(cross);
+
+                for _ in 0..*w {
+                    ruler.push_str(line::HORIZONTAL);
+                }
+            }
+
+            ruler.push_str(line::BOTTOM_RIGHT);
+            text.lines.push(Spans(vec![Span::styled(ruler, style)]));
+        }
+
+        text
+    }
+}
+
+pub enum StyleTreeNode {
+    Blockquote(Box<StyleTreeNode>),
+    Break,
+    Code(Box<StyleTreeNode>, Option<String>),
+    Header(Box<StyleTreeNode>, usize),
+    Image(Option<String>),
+    List(StyleTreeChildren, ListStyle),
+    Paragraph(Box<StyleTreeNode>),
+    Reply(Box<StyleTreeNode>),
+    Ruler,
+    Style(Box<StyleTreeNode>, Style),
+    Table(Table),
+    Text(String),
+    Sequence(StyleTreeChildren),
+}
+
+impl StyleTreeNode {
+    pub fn to_text(&self, width: usize, style: Style) -> Text {
+        let mut printer = TextPrinter::new(width, style, true);
+        self.print(&mut printer, style);
+        printer.finish()
+    }
+
+    pub fn print<'a>(&'a self, printer: &mut TextPrinter<'a>, style: Style) {
+        let width = printer.width();
+
+        match self {
+            StyleTreeNode::Blockquote(child) => {
+                let mut subp = printer.sub(4);
+                child.print(&mut subp, style);
+
+                for mut line in subp.finish() {
+                    line.0.insert(0, Span::styled("    ", style));
+                    printer.push_line(line);
+                }
+            },
+            StyleTreeNode::Code(child, _) => {
+                child.print(printer, style);
+            },
+            StyleTreeNode::Header(child, level) => {
+                let style = style.add_modifier(StyleModifier::BOLD);
+                let mut hashes = "#".repeat(*level);
+                hashes.push(' ');
+
+                printer.push_str(hashes, style);
+                child.print(printer, style);
+            },
+            StyleTreeNode::Image(None) => {},
+            StyleTreeNode::Image(Some(alt)) => {
+                printer.commit();
+                printer.push_str("Image Alt: ", Style::default());
+                printer.push_str(alt, Style::default());
+                printer.commit();
+            },
+            StyleTreeNode::List(children, lt) => {
+                let mut bullets = lt.bullets(children.len());
+                let liw = bullets.width();
+
+                for child in children {
+                    let mut subp = printer.sub(liw);
+                    let mut bullet = bullets.next();
+                    child.print(&mut subp, style);
+
+                    for mut line in subp.finish() {
+                        let leading = if let Some(bullet) = bullet.take() {
+                            Span::styled(bullet, style)
+                        } else {
+                            Span::styled(" ".repeat(liw), style)
+                        };
+
+                        line.0.insert(0, leading);
+                        printer.push_line(line);
+                    }
+                }
+            },
+            StyleTreeNode::Paragraph(child) => {
+                printer.push_break();
+                child.print(printer, style);
+                printer.commit();
+            },
+            StyleTreeNode::Reply(child) => {
+                if printer.hide_reply() {
+                    return;
+                }
+
+                printer.push_break();
+                child.print(printer, style);
+                printer.commit();
+            },
+            StyleTreeNode::Ruler => {
+                printer.push_str(line::HORIZONTAL.repeat(width), style);
+            },
+            StyleTreeNode::Table(table) => {
+                let text = table.to_text(width, style);
+                printer.push_text(text);
+            },
+            StyleTreeNode::Break => {
+                printer.push_break();
+            },
+            StyleTreeNode::Text(s) => {
+                printer.push_str(s.as_str(), style);
+            },
+
+            StyleTreeNode::Style(child, patch) => child.print(printer, style.patch(*patch)),
+            StyleTreeNode::Sequence(children) => {
+                for child in children {
+                    child.print(printer, style);
+                }
+            },
+        }
+    }
+}
+
+pub struct StyleTree {
+    children: StyleTreeChildren,
+}
+
+impl StyleTree {
+    pub fn to_text(&self, width: usize, style: Style, hide_reply: bool) -> Text<'_> {
+        let mut printer = TextPrinter::new(width, style, hide_reply);
+
+        for child in self.children.iter() {
+            child.print(&mut printer, style);
+        }
+
+        printer.finish()
+    }
+}
+
+fn c2c(handles: &[Handle]) -> Vec<StyleTreeNode> {
+    handles.iter().flat_map(h2t).collect()
+}
+
+fn c2t(handles: &[Handle]) -> Box<StyleTreeNode> {
+    let node = StyleTreeNode::Sequence(c2c(handles));
+
+    Box::new(node)
+}
+
+fn get_node(hdl: &Handle, want: &str) -> Option<StyleTreeNode> {
+    let node = hdl.deref();
+
+    if let NodeData::Element { name, .. } = &node.data {
+        if name.local.as_ref() != want {
+            return None;
+        }
+
+        let c = c2c(&node.children.borrow());
+        return Some(StyleTreeNode::Sequence(c));
+    } else {
+        return None;
+    }
+}
+
+fn li2t(hdl: &Handle) -> Option<StyleTreeNode> {
+    get_node(hdl, "li")
+}
+
+fn table_cell(hdl: &Handle) -> Option<(CellType, StyleTreeNode)> {
+    if let Some(node) = get_node(hdl, "th") {
+        return Some((CellType::Header, node));
+    }
+
+    Some((CellType::Data, get_node(hdl, "td")?))
+}
+
+fn table_row(hdl: &Handle) -> Option<TableRow> {
+    let node = hdl.deref();
+
+    if let NodeData::Element { name, .. } = &node.data {
+        if name.local.as_ref() != "tr" {
+            return None;
+        }
+
+        let cells = table_cells(&node.children.borrow());
+        return Some(TableRow { cells });
+    } else {
+        return None;
+    }
+}
+
+fn table_section(hdl: &Handle) -> Option<TableSection> {
+    let node = hdl.deref();
+
+    if let NodeData::Element { name, .. } = &node.data {
+        match name.local.as_ref() {
+            "thead" | "tbody" => {
+                let rows = table_rows(&node.children.borrow());
+
+                Some(TableSection { rows })
+            },
+            _ => None,
+        }
+    } else {
+        return None;
+    }
+}
+
+fn table_cells(handles: &[Handle]) -> Vec<(CellType, StyleTreeNode)> {
+    handles.iter().filter_map(table_cell).collect()
+}
+
+fn table_rows(handles: &[Handle]) -> Vec<TableRow> {
+    handles.iter().filter_map(table_row).collect()
+}
+
+fn table_sections(handles: &[Handle]) -> Vec<TableSection> {
+    handles.iter().filter_map(table_section).collect()
+}
+
+fn lic2t(handles: &[Handle]) -> StyleTreeChildren {
+    handles.iter().filter_map(li2t).collect()
+}
+
+fn attrs_to_alt(attrs: &[Attribute]) -> Option<String> {
+    for attr in attrs {
+        if attr.name.local.as_ref() != "alt" {
+            continue;
+        }
+
+        return Some(attr.value.to_string());
+    }
+
+    return None;
+}
+
+fn attrs_to_language(attrs: &[Attribute]) -> Option<String> {
+    for attr in attrs {
+        if attr.name.local.as_ref() != "class" {
+            continue;
+        }
+
+        for class in attr.value.as_ref().unicode_words() {
+            if class.len() > 9 && class.starts_with("language-") {
+                return Some(class[9..].to_string());
+            }
+        }
+    }
+
+    return None;
+}
+
+fn attrs_to_style(attrs: &[Attribute]) -> Style {
+    let mut style = Style::default();
+
+    for attr in attrs {
+        match attr.name.local.as_ref() {
+            "data-mx-bg-color" => {
+                if let Ok(rgb) = attr.value.as_ref().parse::<CssColor>() {
+                    let color = Color::Rgb(rgb.r, rgb.g, rgb.b);
+                    style = style.bg(color);
+                }
+            },
+            "data-mx-color" | "color" => {
+                if let Ok(rgb) = attr.value.as_ref().parse::<CssColor>() {
+                    let color = Color::Rgb(rgb.r, rgb.g, rgb.b);
+                    style = style.fg(color);
+                }
+            },
+            _ => continue,
+        }
+    }
+
+    return style;
+}
+
+fn h2t(hdl: &Handle) -> StyleTreeChildren {
+    let node = hdl.deref();
+
+    let tree = match &node.data {
+        NodeData::Document => *c2t(node.children.borrow().as_slice()),
+        NodeData::Text { contents } => StyleTreeNode::Text(contents.borrow().to_string()),
+        NodeData::Element { name, attrs, .. } => {
+            match name.local.as_ref() {
+                // Message that this one replies to.
+                "mx-reply" => StyleTreeNode::Reply(c2t(&node.children.borrow())),
+
+                // Style change
+                "b" | "strong" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = Style::default().add_modifier(StyleModifier::BOLD);
+
+                    StyleTreeNode::Style(c, s)
+                },
+                "font" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = attrs_to_style(&attrs.borrow());
+
+                    StyleTreeNode::Style(c, s)
+                },
+                "em" | "i" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = Style::default().add_modifier(StyleModifier::ITALIC);
+
+                    StyleTreeNode::Style(c, s)
+                },
+                "span" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = attrs_to_style(&attrs.borrow());
+
+                    StyleTreeNode::Style(c, s)
+                },
+                "del" | "strike" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = Style::default().add_modifier(StyleModifier::CROSSED_OUT);
+
+                    StyleTreeNode::Style(c, s)
+                },
+                "u" => {
+                    let c = c2t(&node.children.borrow());
+                    let s = Style::default().add_modifier(StyleModifier::UNDERLINED);
+
+                    StyleTreeNode::Style(c, s)
+                },
+
+                // Lists
+                "ol" => StyleTreeNode::List(lic2t(&node.children.borrow()), ListStyle::Ordered),
+                "ul" => StyleTreeNode::List(lic2t(&node.children.borrow()), ListStyle::Unordered),
+
+                // Headers
+                "h1" => StyleTreeNode::Header(c2t(&node.children.borrow()), 1),
+                "h2" => StyleTreeNode::Header(c2t(&node.children.borrow()), 2),
+                "h3" => StyleTreeNode::Header(c2t(&node.children.borrow()), 3),
+                "h4" => StyleTreeNode::Header(c2t(&node.children.borrow()), 4),
+                "h5" => StyleTreeNode::Header(c2t(&node.children.borrow()), 5),
+                "h6" => StyleTreeNode::Header(c2t(&node.children.borrow()), 6),
+
+                // Table
+                "table" => {
+                    let sections = table_sections(&node.children.borrow());
+                    let caption = node
+                        .children
+                        .borrow()
+                        .iter()
+                        .find_map(|hdl| get_node(hdl, "caption"))
+                        .map(Box::new);
+                    let table = Table { caption, sections };
+
+                    StyleTreeNode::Table(table)
+                },
+
+                // Code blocks.
+                "code" => {
+                    let c = c2t(&node.children.borrow());
+                    let l = attrs_to_language(&attrs.borrow());
+
+                    StyleTreeNode::Code(c, l)
+                },
+
+                // Other text blocks.
+                "blockquote" => StyleTreeNode::Blockquote(c2t(&node.children.borrow())),
+                "div" | "p" => StyleTreeNode::Paragraph(c2t(&node.children.borrow())),
+
+                // No children.
+                "hr" => StyleTreeNode::Ruler,
+                "br" => StyleTreeNode::Break,
+
+                "img" => StyleTreeNode::Image(attrs_to_alt(&attrs.borrow())),
+
+                // These don't render in any special way.
+                "a" | "details" | "html" | "pre" | "summary" | "sub" | "sup" => {
+                    *c2t(&node.children.borrow())
+                },
+
+                _ => return vec![],
+            }
+        },
+
+        // These don't render as anything.
+        NodeData::Doctype { .. } => return vec![],
+        NodeData::Comment { .. } => return vec![],
+        NodeData::ProcessingInstruction { .. } => return vec![],
+    };
+
+    vec![tree]
+}
+
+fn dom_to_style_tree(dom: RcDom) -> StyleTree {
+    StyleTree { children: h2t(&dom.document) }
+}
+
+pub fn parse_matrix_html(s: &str) -> StyleTree {
+    let dom = parse_fragment(
+        RcDom::default(),
+        ParseOpts::default(),
+        QualName::new(None, ns!(), local_name!("div")),
+        vec![],
+    )
+    .one(StrTendril::from(s));
+
+    dom_to_style_tree(dom)
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+    use crate::util::space_span;
+
+    #[test]
+    fn test_header() {
+        let bold = Style::default().add_modifier(StyleModifier::BOLD);
+
+        let s = "<h1>Header 1</h1>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("# ", bold),
+            Span::styled("Header 1", bold),
+            space_span(10, Style::default())
+        ])]);
+
+        let s = "<h2>Header 2</h2>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("## ", bold),
+            Span::styled("Header 2", bold),
+            space_span(9, Style::default())
+        ])]);
+
+        let s = "<h3>Header 3</h3>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("### ", bold),
+            Span::styled("Header 3", bold),
+            space_span(8, Style::default())
+        ])]);
+
+        let s = "<h4>Header 4</h4>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("#### ", bold),
+            Span::styled("Header 4", bold),
+            space_span(7, Style::default())
+        ])]);
+
+        let s = "<h5>Header 5</h5>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("##### ", bold),
+            Span::styled("Header 5", bold),
+            space_span(6, Style::default())
+        ])]);
+
+        let s = "<h6>Header 6</h6>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("###### ", bold),
+            Span::styled("Header 6", bold),
+            space_span(5, Style::default())
+        ])]);
+    }
+
+    #[test]
+    fn test_style() {
+        let def = Style::default();
+        let bold = def.add_modifier(StyleModifier::BOLD);
+        let italic = def.add_modifier(StyleModifier::ITALIC);
+        let strike = def.add_modifier(StyleModifier::CROSSED_OUT);
+        let underl = def.add_modifier(StyleModifier::UNDERLINED);
+        let red = def.fg(Color::Rgb(0xff, 0x00, 0x00));
+
+        let s = "<b>Bold!</b>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Bold!", bold),
+            space_span(15, def)
+        ])]);
+
+        let s = "<strong>Bold!</strong>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Bold!", bold),
+            space_span(15, def)
+        ])]);
+
+        let s = "<i>Italic!</i>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Italic!", italic),
+            space_span(13, def)
+        ])]);
+
+        let s = "<em>Italic!</em>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Italic!", italic),
+            space_span(13, def)
+        ])]);
+
+        let s = "<del>Strikethrough!</del>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Strikethrough!", strike),
+            space_span(6, def)
+        ])]);
+
+        let s = "<strike>Strikethrough!</strike>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Strikethrough!", strike),
+            space_span(6, def)
+        ])]);
+
+        let s = "<u>Underline!</u>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![
+            Span::styled("Underline!", underl),
+            space_span(10, def)
+        ])]);
+
+        let s = "<font color=\"#ff0000\">Red!</u>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![Span::styled("Red!", red), space_span(16, def)])]);
+
+        let s = "<font color=\"red\">Red!</u>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(20, Style::default(), false);
+        assert_eq!(text.lines, vec![Spans(vec![Span::styled("Red!", red), space_span(16, def)])]);
+    }
+
+    #[test]
+    fn test_paragraph() {
+        let s = "<p>Hello world!</p><p>Content</p><p>Goodbye world!</p>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(10, Style::default(), false);
+        assert_eq!(text.lines.len(), 7);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("Hello worl")]));
+        assert_eq!(text.lines[1], Spans(vec![Span::raw("d!"), Span::raw("        ")]));
+        assert_eq!(text.lines[2], Spans(vec![Span::raw("          ")]));
+        assert_eq!(text.lines[3], Spans(vec![Span::raw("Content"), Span::raw("   ")]));
+        assert_eq!(text.lines[4], Spans(vec![Span::raw("          ")]));
+        assert_eq!(text.lines[5], Spans(vec![Span::raw("Goodbye wo")]));
+        assert_eq!(text.lines[6], Spans(vec![Span::raw("rld!"), Span::raw("      ")]));
+    }
+
+    #[test]
+    fn test_blockquote() {
+        let s = "<blockquote>Hello world!</blockquote>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(10, Style::default(), false);
+        assert_eq!(text.lines.len(), 2);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("    "), Span::raw("Hello ")]));
+        assert_eq!(text.lines[1], Spans(vec![Span::raw("    "), Span::raw("world!")]));
+    }
+
+    #[test]
+    fn test_list_unordered() {
+        let s = "<ul><li>List Item 1</li><li>List Item 2</li><li>List Item 3</li></ul>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(8, Style::default(), false);
+        assert_eq!(text.lines.len(), 6);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("- "), Span::raw("List I")]));
+        assert_eq!(text.lines[1], Spans(vec![Span::raw("  "), Span::raw("tem 1"), Span::raw(" ")]));
+        assert_eq!(text.lines[2], Spans(vec![Span::raw("- "), Span::raw("List I")]));
+        assert_eq!(text.lines[3], Spans(vec![Span::raw("  "), Span::raw("tem 2"), Span::raw(" ")]));
+        assert_eq!(text.lines[4], Spans(vec![Span::raw("- "), Span::raw("List I")]));
+        assert_eq!(text.lines[5], Spans(vec![Span::raw("  "), Span::raw("tem 3"), Span::raw(" ")]));
+    }
+
+    #[test]
+    fn test_list_ordered() {
+        let s = "<ol><li>List Item 1</li><li>List Item 2</li><li>List Item 3</li></ol>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(9, Style::default(), false);
+        assert_eq!(text.lines.len(), 6);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("1. "), Span::raw("List I")]));
+        assert_eq!(
+            text.lines[1],
+            Spans(vec![Span::raw("   "), Span::raw("tem 1"), Span::raw(" ")])
+        );
+        assert_eq!(text.lines[2], Spans(vec![Span::raw("2. "), Span::raw("List I")]));
+        assert_eq!(
+            text.lines[3],
+            Spans(vec![Span::raw("   "), Span::raw("tem 2"), Span::raw(" ")])
+        );
+        assert_eq!(text.lines[4], Spans(vec![Span::raw("3. "), Span::raw("List I")]));
+        assert_eq!(
+            text.lines[5],
+            Spans(vec![Span::raw("   "), Span::raw("tem 3"), Span::raw(" ")])
+        );
+    }
+
+    #[test]
+    fn test_table() {
+        let s = "<table>\
+                 <thead>\
+                 <tr><th>Column 1</th><th>Column 2</th><th>Column 3</th></tr>
+                 </thead>\
+                 <tbody>\
+                 <tr><td>a</td><td>b</td><td>c</td></tr>\
+                 <tr><td>a</td><td>b</td><td>c</td></tr>\
+                 <tr><td>a</td><td>b</td><td>c</td></tr>\
+                 </tbody></table>";
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(15, Style::default(), false);
+        let bold = Style::default().add_modifier(StyleModifier::BOLD);
+        assert_eq!(text.lines.len(), 11);
+
+        // Table header
+        assert_eq!(text.lines[0].0, vec![Span::raw("┌────┬────┬───┐")]);
+        assert_eq!(text.lines[1].0, vec![
+            Span::raw("│"),
+            Span::styled("Colu", bold),
+            Span::raw("│"),
+            Span::styled("Colu", bold),
+            Span::raw("│"),
+            Span::styled("Col", bold),
+            Span::raw("│")
+        ]);
+        assert_eq!(text.lines[2].0, vec![
+            Span::raw("│"),
+            Span::styled("mn 1", bold),
+            Span::raw("│"),
+            Span::styled("mn 2", bold),
+            Span::raw("│"),
+            Span::styled("umn", bold),
+            Span::raw("│")
+        ]);
+        assert_eq!(text.lines[3].0, vec![
+            Span::raw("│"),
+            Span::raw("    "),
+            Span::raw("│"),
+            Span::raw("    "),
+            Span::raw("│"),
+            Span::styled(" 3", bold),
+            Span::styled(" ", bold),
+            Span::raw("│")
+        ]);
+
+        // First row
+        assert_eq!(text.lines[4].0, vec![Span::raw("├────┼────┼───┤")]);
+        assert_eq!(text.lines[5].0, vec![
+            Span::raw("│"),
+            Span::raw("a"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("b"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("c"),
+            Span::raw("  "),
+            Span::raw("│")
+        ]);
+
+        // Second row
+        assert_eq!(text.lines[6].0, vec![Span::raw("├────┼────┼───┤")]);
+        assert_eq!(text.lines[7].0, vec![
+            Span::raw("│"),
+            Span::raw("a"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("b"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("c"),
+            Span::raw("  "),
+            Span::raw("│")
+        ]);
+
+        // Third row
+        assert_eq!(text.lines[8].0, vec![Span::raw("├────┼────┼───┤")]);
+        assert_eq!(text.lines[9].0, vec![
+            Span::raw("│"),
+            Span::raw("a"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("b"),
+            Span::raw("   "),
+            Span::raw("│"),
+            Span::raw("c"),
+            Span::raw("  "),
+            Span::raw("│")
+        ]);
+
+        // Bottom ruler
+        assert_eq!(text.lines[10].0, vec![Span::raw("└────┴────┴───┘")]);
+    }
+
+    #[test]
+    fn test_matrix_reply() {
+        let s = "<mx-reply>This was replied to</mx-reply>This is the reply";
+
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(10, Style::default(), false);
+        assert_eq!(text.lines.len(), 4);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("This was r")]));
+        assert_eq!(text.lines[1], Spans(vec![Span::raw("eplied to"), Span::raw(" ")]));
+        assert_eq!(text.lines[2], Spans(vec![Span::raw("This is th")]));
+        assert_eq!(text.lines[3], Spans(vec![Span::raw("e reply"), Span::raw("   ")]));
+
+        let tree = parse_matrix_html(s);
+        let text = tree.to_text(10, Style::default(), true);
+        assert_eq!(text.lines.len(), 2);
+        assert_eq!(text.lines[0], Spans(vec![Span::raw("This is th")]));
+        assert_eq!(text.lines[1], Spans(vec![Span::raw("e reply"), Span::raw("   ")]));
+    }
+}

src/message/mod.rs

@@ -0,0 +1,807 @@
+use std::borrow::Cow;
+use std::cmp::{Ord, Ordering, PartialOrd};
+use std::collections::hash_map::DefaultHasher;
+use std::collections::BTreeMap;
+use std::convert::TryFrom;
+use std::hash::{Hash, Hasher};
+use std::slice::Iter;
+
+use chrono::{DateTime, NaiveDateTime, Utc};
+use unicode_width::UnicodeWidthStr;
+
+use matrix_sdk::ruma::{
+    events::{
+        room::{
+            message::{
+                FormattedBody,
+                MessageFormat,
+                MessageType,
+                OriginalRoomMessageEvent,
+                RedactedRoomMessageEvent,
+                Relation,
+                RoomMessageEvent,
+                RoomMessageEventContent,
+            },
+            redaction::SyncRoomRedactionEvent,
+        },
+        Redact,
+    },
+    EventId,
+    MilliSecondsSinceUnixEpoch,
+    OwnedEventId,
+    OwnedUserId,
+    RoomVersionId,
+    UInt,
+};
+
+use modalkit::tui::{
+    style::{Modifier as StyleModifier, Style},
+    symbols::line::THICK_VERTICAL,
+    text::{Span, Spans, Text},
+};
+
+use modalkit::editing::{base::ViewportContext, cursor::Cursor};
+
+use crate::{
+    base::{IambResult, RoomInfo},
+    config::ApplicationSettings,
+    message::html::{parse_matrix_html, StyleTree},
+    util::{space_span, wrapped_text},
+};
+
+mod html;
+mod printer;
+
+pub type MessageFetchResult = IambResult<(Option<String>, Vec<RoomMessageEvent>)>;
+pub type MessageKey = (MessageTimeStamp, OwnedEventId);
+pub type Messages = BTreeMap<MessageKey, Message>;
+
+const fn span_static(s: &'static str) -> Span<'static> {
+    Span {
+        content: Cow::Borrowed(s),
+        style: Style {
+            fg: None,
+            bg: None,
+            add_modifier: StyleModifier::empty(),
+            sub_modifier: StyleModifier::empty(),
+        },
+    }
+}
+
+const USER_GUTTER: usize = 30;
+const TIME_GUTTER: usize = 12;
+const READ_GUTTER: usize = 5;
+const MIN_MSG_LEN: usize = 30;
+
+const USER_GUTTER_EMPTY: &str = "                              ";
+const USER_GUTTER_EMPTY_SPAN: Span<'static> = span_static(USER_GUTTER_EMPTY);
+
+const TIME_GUTTER_EMPTY: &str = "            ";
+const TIME_GUTTER_EMPTY_SPAN: Span<'static> = span_static(TIME_GUTTER_EMPTY);
+
+#[derive(thiserror::Error, Debug)]
+pub enum TimeStampIntError {
+    #[error("Integer conversion error: {0}")]
+    IntError(#[from] std::num::TryFromIntError),
+
+    #[error("UInt conversion error: {0}")]
+    UIntError(<UInt as TryFrom<u64>>::Error),
+}
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum MessageTimeStamp {
+    OriginServer(UInt),
+    LocalEcho,
+}
+
+impl MessageTimeStamp {
+    fn show(&self) -> Option<Span> {
+        match self {
+            MessageTimeStamp::OriginServer(ts) => {
+                let time = i64::from(*ts) / 1000;
+                let time = NaiveDateTime::from_timestamp_opt(time, 0)?;
+                let time = DateTime::<Utc>::from_utc(time, Utc);
+                let time = time.format("%T");
+                let time = format!("  [{}]", time);
+
+                Span::raw(time).into()
+            },
+            MessageTimeStamp::LocalEcho => None,
+        }
+    }
+
+    fn is_local_echo(&self) -> bool {
+        matches!(self, MessageTimeStamp::LocalEcho)
+    }
+
+    pub fn as_millis(&self) -> Option<MilliSecondsSinceUnixEpoch> {
+        match self {
+            MessageTimeStamp::OriginServer(ms) => MilliSecondsSinceUnixEpoch(*ms).into(),
+            MessageTimeStamp::LocalEcho => None,
+        }
+    }
+}
+
+impl Ord for MessageTimeStamp {
+    fn cmp(&self, other: &Self) -> Ordering {
+        match (self, other) {
+            (MessageTimeStamp::OriginServer(_), MessageTimeStamp::LocalEcho) => Ordering::Less,
+            (MessageTimeStamp::OriginServer(a), MessageTimeStamp::OriginServer(b)) => a.cmp(b),
+            (MessageTimeStamp::LocalEcho, MessageTimeStamp::OriginServer(_)) => Ordering::Greater,
+            (MessageTimeStamp::LocalEcho, MessageTimeStamp::LocalEcho) => Ordering::Equal,
+        }
+    }
+}
+
+impl PartialOrd for MessageTimeStamp {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.cmp(other).into()
+    }
+}
+
+impl From<MilliSecondsSinceUnixEpoch> for MessageTimeStamp {
+    fn from(millis: MilliSecondsSinceUnixEpoch) -> Self {
+        MessageTimeStamp::OriginServer(millis.0)
+    }
+}
+
+impl TryFrom<&MessageTimeStamp> for usize {
+    type Error = TimeStampIntError;
+
+    fn try_from(ts: &MessageTimeStamp) -> Result<Self, Self::Error> {
+        let n = match ts {
+            MessageTimeStamp::LocalEcho => 0,
+            MessageTimeStamp::OriginServer(u) => usize::try_from(u64::from(*u))?,
+        };
+
+        Ok(n)
+    }
+}
+
+impl TryFrom<usize> for MessageTimeStamp {
+    type Error = TimeStampIntError;
+
+    fn try_from(u: usize) -> Result<Self, Self::Error> {
+        if u == 0 {
+            Ok(MessageTimeStamp::LocalEcho)
+        } else {
+            let n = u64::try_from(u)?;
+            let n = UInt::try_from(n).map_err(TimeStampIntError::UIntError)?;
+
+            Ok(MessageTimeStamp::OriginServer(n))
+        }
+    }
+}
+
+#[derive(Clone, Debug, Default, Eq, PartialEq)]
+pub struct MessageCursor {
+    /// When timestamp is None, the corner is determined by moving backwards from
+    /// the most recently received message.
+    pub timestamp: Option<MessageKey>,
+
+    /// A row within the [Text] representation of a [Message].
+    pub text_row: usize,
+}
+
+impl MessageCursor {
+    pub fn new(timestamp: MessageKey, text_row: usize) -> Self {
+        MessageCursor { timestamp: Some(timestamp), text_row }
+    }
+
+    /// Get a cursor that refers to the most recent message.
+    pub fn latest() -> Self {
+        MessageCursor::default()
+    }
+
+    pub fn to_key<'a>(&'a self, info: &'a RoomInfo) -> Option<&'a MessageKey> {
+        if let Some(ref key) = self.timestamp {
+            Some(key)
+        } else {
+            Some(info.messages.last_key_value()?.0)
+        }
+    }
+
+    pub fn from_cursor(cursor: &Cursor, info: &RoomInfo) -> Option<Self> {
+        let ev_hash = u64::try_from(cursor.get_x()).ok()?;
+        let ev_term = OwnedEventId::try_from("$").ok()?;
+
+        let ts_start = MessageTimeStamp::try_from(cursor.get_y()).ok()?;
+        let start = (ts_start, ev_term);
+        let mut mc = None;
+
+        for ((ts, event_id), _) in info.messages.range(start..) {
+            let mut hasher = DefaultHasher::new();
+            event_id.hash(&mut hasher);
+
+            if hasher.finish() == ev_hash {
+                mc = Self::from((*ts, event_id.clone())).into();
+                break;
+            }
+
+            if mc.is_none() {
+                mc = Self::from((*ts, event_id.clone())).into();
+            }
+
+            if ts > &ts_start {
+                break;
+            }
+        }
+
+        return mc;
+    }
+
+    pub fn to_cursor(&self, info: &RoomInfo) -> Option<Cursor> {
+        let (ts, event_id) = self.to_key(info)?;
+
+        let y: usize = usize::try_from(ts).ok()?;
+
+        let mut hasher = DefaultHasher::new();
+        event_id.hash(&mut hasher);
+        let x = usize::try_from(hasher.finish()).ok()?;
+
+        Cursor::new(y, x).into()
+    }
+}
+
+impl From<Option<MessageKey>> for MessageCursor {
+    fn from(key: Option<MessageKey>) -> Self {
+        MessageCursor { timestamp: key, text_row: 0 }
+    }
+}
+
+impl From<MessageKey> for MessageCursor {
+    fn from(key: MessageKey) -> Self {
+        MessageCursor { timestamp: Some(key), text_row: 0 }
+    }
+}
+
+impl Ord for MessageCursor {
+    fn cmp(&self, other: &Self) -> Ordering {
+        match (&self.timestamp, &other.timestamp) {
+            (None, None) => self.text_row.cmp(&other.text_row),
+            (None, Some(_)) => Ordering::Greater,
+            (Some(_), None) => Ordering::Less,
+            (Some(st), Some(ot)) => {
+                let pcmp = st.cmp(ot);
+                let tcmp = self.text_row.cmp(&other.text_row);
+
+                pcmp.then(tcmp)
+            },
+        }
+    }
+}
+
+impl PartialOrd for MessageCursor {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.cmp(other).into()
+    }
+}
+
+#[derive(Clone)]
+pub enum MessageEvent {
+    Original(Box<OriginalRoomMessageEvent>),
+    Redacted(Box<RedactedRoomMessageEvent>),
+    Local(OwnedEventId, Box<RoomMessageEventContent>),
+}
+
+impl MessageEvent {
+    pub fn event_id(&self) -> &EventId {
+        match self {
+            MessageEvent::Original(ev) => ev.event_id.as_ref(),
+            MessageEvent::Redacted(ev) => ev.event_id.as_ref(),
+            MessageEvent::Local(event_id, _) => event_id.as_ref(),
+        }
+    }
+
+    pub fn body(&self) -> Cow<'_, str> {
+        match self {
+            MessageEvent::Original(ev) => body_cow_content(&ev.content),
+            MessageEvent::Redacted(ev) => {
+                let reason = ev
+                    .unsigned
+                    .redacted_because
+                    .as_ref()
+                    .and_then(|e| e.as_original())
+                    .and_then(|r| r.content.reason.as_ref());
+
+                if let Some(r) = reason {
+                    Cow::Owned(format!("[Redacted: {:?}]", r))
+                } else {
+                    Cow::Borrowed("[Redacted]")
+                }
+            },
+            MessageEvent::Local(_, content) => body_cow_content(content),
+        }
+    }
+
+    pub fn html(&self) -> Option<StyleTree> {
+        let content = match self {
+            MessageEvent::Original(ev) => &ev.content,
+            MessageEvent::Redacted(_) => return None,
+            MessageEvent::Local(_, content) => content,
+        };
+
+        if let MessageType::Text(content) = &content.msgtype {
+            if let Some(FormattedBody { format: MessageFormat::Html, body }) = &content.formatted {
+                Some(parse_matrix_html(body.as_str()))
+            } else {
+                None
+            }
+        } else {
+            None
+        }
+    }
+
+    pub fn redact(&mut self, redaction: SyncRoomRedactionEvent, version: &RoomVersionId) {
+        match self {
+            MessageEvent::Redacted(_) => return,
+            MessageEvent::Local(_, _) => return,
+            MessageEvent::Original(ev) => {
+                let redacted = ev.clone().redact(redaction, version);
+                *self = MessageEvent::Redacted(Box::new(redacted));
+            },
+        }
+    }
+}
+
+fn body_cow_content(content: &RoomMessageEventContent) -> Cow<'_, str> {
+    let s = match &content.msgtype {
+        MessageType::Text(content) => content.body.as_str(),
+        MessageType::VerificationRequest(_) => "[Verification Request]",
+        MessageType::Emote(content) => content.body.as_ref(),
+        MessageType::Notice(content) => content.body.as_str(),
+        MessageType::ServerNotice(content) => content.body.as_str(),
+
+        MessageType::Audio(content) => {
+            return Cow::Owned(format!("[Attached Audio: {}]", content.body));
+        },
+        MessageType::File(content) => {
+            return Cow::Owned(format!("[Attached File: {}]", content.body));
+        },
+        MessageType::Image(content) => {
+            return Cow::Owned(format!("[Attached Image: {}]", content.body));
+        },
+        MessageType::Video(content) => {
+            return Cow::Owned(format!("[Attached Video: {}]", content.body));
+        },
+        _ => {
+            return Cow::Owned(format!("[Unknown message type: {:?}]", content.msgtype()));
+        },
+    };
+
+    Cow::Borrowed(s)
+}
+
+enum MessageColumns {
+    /// Four columns: sender, message, timestamp, read receipts.
+    Four,
+
+    /// Three columns: sender, message, timestamp.
+    Three,
+
+    /// Two columns: sender, message.
+    Two,
+
+    /// One column: message with sender on line before the message.
+    One,
+}
+
+struct MessageFormatter<'a> {
+    settings: &'a ApplicationSettings,
+    cols: MessageColumns,
+    fill: usize,
+    user: Option<Span<'a>>,
+    time: Option<Span<'a>>,
+    read: Iter<'a, OwnedUserId>,
+}
+
+impl<'a> MessageFormatter<'a> {
+    fn width(&self) -> usize {
+        self.fill
+    }
+
+    #[inline]
+    fn push_spans(&mut self, spans: Spans<'a>, style: Style, text: &mut Text<'a>) {
+        match self.cols {
+            MessageColumns::Four => {
+                let settings = self.settings;
+                let user = self.user.take().unwrap_or(USER_GUTTER_EMPTY_SPAN);
+                let time = self.time.take().unwrap_or(TIME_GUTTER_EMPTY_SPAN);
+
+                let mut line = vec![user];
+                line.extend(spans.0);
+                line.push(time);
+
+                // Show read receipts.
+                let user_char =
+                    |user: &'a OwnedUserId| -> Span<'a> { settings.get_user_char_span(user) };
+
+                let a = self.read.next().map(user_char).unwrap_or_else(|| Span::raw(" "));
+                let b = self.read.next().map(user_char).unwrap_or_else(|| Span::raw(" "));
+                let c = self.read.next().map(user_char).unwrap_or_else(|| Span::raw(" "));
+
+                line.push(Span::raw(" "));
+                line.push(c);
+                line.push(b);
+                line.push(a);
+                line.push(Span::raw(" "));
+
+                text.lines.push(Spans(line))
+            },
+            MessageColumns::Three => {
+                let user = self.user.take().unwrap_or(USER_GUTTER_EMPTY_SPAN);
+                let time = self.time.take().unwrap_or_else(|| Span::from(""));
+
+                let mut line = vec![user];
+                line.extend(spans.0);
+                line.push(time);
+
+                text.lines.push(Spans(line))
+            },
+            MessageColumns::Two => {
+                let user = self.user.take().unwrap_or(USER_GUTTER_EMPTY_SPAN);
+                let mut line = vec![user];
+                line.extend(spans.0);
+
+                text.lines.push(Spans(line));
+            },
+            MessageColumns::One => {
+                if let Some(user) = self.user.take() {
+                    text.lines.push(Spans(vec![user]));
+                }
+
+                let leading = space_span(2, style);
+                let mut line = vec![leading];
+                line.extend(spans.0);
+
+                text.lines.push(Spans(line));
+            },
+        }
+    }
+
+    fn push_text(&mut self, append: Text<'a>, style: Style, text: &mut Text<'a>) {
+        for line in append.lines.into_iter() {
+            self.push_spans(line, style, text);
+        }
+    }
+}
+
+pub struct Message {
+    pub event: MessageEvent,
+    pub sender: OwnedUserId,
+    pub timestamp: MessageTimeStamp,
+    pub downloaded: bool,
+    pub html: Option<StyleTree>,
+}
+
+impl Message {
+    pub fn new(event: MessageEvent, sender: OwnedUserId, timestamp: MessageTimeStamp) -> Self {
+        let html = event.html();
+        let downloaded = false;
+
+        Message { event, sender, timestamp, downloaded, html }
+    }
+
+    pub fn reply_to(&self) -> Option<OwnedEventId> {
+        let content = match &self.event {
+            MessageEvent::Local(_, content) => content,
+            MessageEvent::Original(ev) => &ev.content,
+            MessageEvent::Redacted(_) => return None,
+        };
+
+        if let Some(Relation::Reply { in_reply_to }) = &content.relates_to {
+            Some(in_reply_to.event_id.clone())
+        } else {
+            None
+        }
+    }
+
+    fn get_render_style(&self, selected: bool) -> Style {
+        let mut style = Style::default();
+
+        if selected {
+            style = style.add_modifier(StyleModifier::REVERSED)
+        }
+
+        if self.timestamp.is_local_echo() {
+            style = style.add_modifier(StyleModifier::ITALIC);
+        }
+
+        return style;
+    }
+
+    fn get_render_format<'a>(
+        &'a self,
+        prev: Option<&Message>,
+        width: usize,
+        info: &'a RoomInfo,
+        settings: &'a ApplicationSettings,
+    ) -> MessageFormatter<'a> {
+        if USER_GUTTER + TIME_GUTTER + READ_GUTTER + MIN_MSG_LEN <= width &&
+            settings.tunables.read_receipt_display
+        {
+            let cols = MessageColumns::Four;
+            let fill = width - USER_GUTTER - TIME_GUTTER - READ_GUTTER;
+            let user = self.show_sender(prev, true, settings);
+            let time = self.timestamp.show();
+            let read = match info.receipts.get(self.event.event_id()) {
+                Some(read) => read.iter(),
+                None => [].iter(),
+            };
+
+            MessageFormatter { settings, cols, fill, user, time, read }
+        } else if USER_GUTTER + TIME_GUTTER + MIN_MSG_LEN <= width {
+            let cols = MessageColumns::Three;
+            let fill = width - USER_GUTTER - TIME_GUTTER;
+            let user = self.show_sender(prev, true, settings);
+            let time = self.timestamp.show();
+            let read = [].iter();
+
+            MessageFormatter { settings, cols, fill, user, time, read }
+        } else if USER_GUTTER + MIN_MSG_LEN <= width {
+            let cols = MessageColumns::Two;
+            let fill = width - USER_GUTTER;
+            let user = self.show_sender(prev, true, settings);
+            let time = None;
+            let read = [].iter();
+
+            MessageFormatter { settings, cols, fill, user, time, read }
+        } else {
+            let cols = MessageColumns::One;
+            let fill = width.saturating_sub(2);
+            let user = self.show_sender(prev, false, settings);
+            let time = None;
+            let read = [].iter();
+
+            MessageFormatter { settings, cols, fill, user, time, read }
+        }
+    }
+
+    pub fn show<'a>(
+        &'a self,
+        prev: Option<&Message>,
+        selected: bool,
+        vwctx: &ViewportContext<MessageCursor>,
+        info: &'a RoomInfo,
+        settings: &'a ApplicationSettings,
+    ) -> Text<'a> {
+        let width = vwctx.get_width();
+
+        let style = self.get_render_style(selected);
+        let mut fmt = self.get_render_format(prev, width, info, settings);
+        let mut text = Text { lines: vec![] };
+        let width = fmt.width();
+
+        // Show the message that this one replied to, if any.
+        let reply = self.reply_to().and_then(|e| info.get_event(&e));
+
+        if let Some(r) = &reply {
+            let w = width.saturating_sub(2);
+            let mut replied = r.show_msg(w, style, true);
+            let mut sender = r.sender_span(settings);
+            let sender_width = UnicodeWidthStr::width(sender.content.as_ref());
+            let trailing = w.saturating_sub(sender_width + 1);
+
+            sender.style = sender.style.patch(style);
+
+            fmt.push_spans(
+                Spans(vec![
+                    Span::styled(" ", style),
+                    Span::styled(THICK_VERTICAL, style),
+                    sender,
+                    Span::styled(":", style),
+                    space_span(trailing, style),
+                ]),
+                style,
+                &mut text,
+            );
+
+            for line in replied.lines.iter_mut() {
+                line.0.insert(0, Span::styled(THICK_VERTICAL, style));
+                line.0.insert(0, Span::styled(" ", style));
+            }
+
+            fmt.push_text(replied, style, &mut text);
+        }
+
+        // Now show the message contents, and the inlined reply if we couldn't find it above.
+        let msg = self.show_msg(width, style, reply.is_some());
+        fmt.push_text(msg, style, &mut text);
+
+        if text.lines.is_empty() {
+            // If there was nothing in the body, just show an empty message.
+            fmt.push_spans(space_span(width, style).into(), style, &mut text);
+        }
+
+        return text;
+    }
+
+    pub fn show_msg(&self, width: usize, style: Style, hide_reply: bool) -> Text {
+        if let Some(html) = &self.html {
+            html.to_text(width, style, hide_reply)
+        } else {
+            let mut msg = self.event.body();
+
+            if self.downloaded {
+                msg.to_mut().push_str(" \u{2705}");
+            }
+
+            wrapped_text(msg, width, style)
+        }
+    }
+
+    fn sender_span(&self, settings: &ApplicationSettings) -> Span {
+        settings.get_user_span(self.sender.as_ref())
+    }
+
+    fn show_sender(
+        &self,
+        prev: Option<&Message>,
+        align_right: bool,
+        settings: &ApplicationSettings,
+    ) -> Option<Span> {
+        let user = if matches!(prev, Some(prev) if self.sender == prev.sender) {
+            return None;
+        } else {
+            self.sender_span(settings)
+        };
+
+        let Span { content, style } = user;
+        let stop = content.len().min(28);
+        let s = &content[..stop];
+
+        let sender = if align_right {
+            format!("{: >width$}  ", s, width = 28)
+        } else {
+            format!("{: <width$}  ", s, width = 28)
+        };
+
+        Span::styled(sender, style).into()
+    }
+}
+
+impl From<OriginalRoomMessageEvent> for Message {
+    fn from(event: OriginalRoomMessageEvent) -> Self {
+        let timestamp = event.origin_server_ts.into();
+        let user_id = event.sender.clone();
+        let content = MessageEvent::Original(event.into());
+
+        Message::new(content, user_id, timestamp)
+    }
+}
+
+impl From<RedactedRoomMessageEvent> for Message {
+    fn from(event: RedactedRoomMessageEvent) -> Self {
+        let timestamp = event.origin_server_ts.into();
+        let user_id = event.sender.clone();
+        let content = MessageEvent::Redacted(event.into());
+
+        Message::new(content, user_id, timestamp)
+    }
+}
+
+impl From<RoomMessageEvent> for Message {
+    fn from(event: RoomMessageEvent) -> Self {
+        match event {
+            RoomMessageEvent::Original(ev) => ev.into(),
+            RoomMessageEvent::Redacted(ev) => ev.into(),
+        }
+    }
+}
+
+impl ToString for Message {
+    fn to_string(&self) -> String {
+        self.event.body().into_owned()
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+    use crate::tests::*;
+
+    #[test]
+    fn test_mc_cmp() {
+        let mc1 = MessageCursor::from(MSG1_KEY.clone());
+        let mc2 = MessageCursor::from(MSG2_KEY.clone());
+        let mc3 = MessageCursor::from(MSG3_KEY.clone());
+        let mc4 = MessageCursor::from(MSG4_KEY.clone());
+        let mc5 = MessageCursor::from(MSG5_KEY.clone());
+
+        // Everything is equal to itself.
+        assert_eq!(mc1.cmp(&mc1), Ordering::Equal);
+        assert_eq!(mc2.cmp(&mc2), Ordering::Equal);
+        assert_eq!(mc3.cmp(&mc3), Ordering::Equal);
+        assert_eq!(mc4.cmp(&mc4), Ordering::Equal);
+        assert_eq!(mc5.cmp(&mc5), Ordering::Equal);
+
+        // Local echo is always greater than an origin server timestamp.
+        assert_eq!(mc1.cmp(&mc2), Ordering::Greater);
+        assert_eq!(mc1.cmp(&mc3), Ordering::Greater);
+        assert_eq!(mc1.cmp(&mc4), Ordering::Greater);
+        assert_eq!(mc1.cmp(&mc5), Ordering::Greater);
+
+        // mc2 is the smallest timestamp.
+        assert_eq!(mc2.cmp(&mc1), Ordering::Less);
+        assert_eq!(mc2.cmp(&mc3), Ordering::Less);
+        assert_eq!(mc2.cmp(&mc4), Ordering::Less);
+        assert_eq!(mc2.cmp(&mc5), Ordering::Less);
+
+        // mc3 should be less than mc4 because of its event ID.
+        assert_eq!(mc3.cmp(&mc1), Ordering::Less);
+        assert_eq!(mc3.cmp(&mc2), Ordering::Greater);
+        assert_eq!(mc3.cmp(&mc4), Ordering::Less);
+        assert_eq!(mc3.cmp(&mc5), Ordering::Less);
+
+        // mc4 should be greater than mc3 because of its event ID.
+        assert_eq!(mc4.cmp(&mc1), Ordering::Less);
+        assert_eq!(mc4.cmp(&mc2), Ordering::Greater);
+        assert_eq!(mc4.cmp(&mc3), Ordering::Greater);
+        assert_eq!(mc4.cmp(&mc5), Ordering::Less);
+
+        // mc5 is the greatest OriginServer timestamp.
+        assert_eq!(mc5.cmp(&mc1), Ordering::Less);
+        assert_eq!(mc5.cmp(&mc2), Ordering::Greater);
+        assert_eq!(mc5.cmp(&mc3), Ordering::Greater);
+        assert_eq!(mc5.cmp(&mc4), Ordering::Greater);
+    }
+
+    #[test]
+    fn test_mc_to_key() {
+        let info = mock_room();
+        let mc1 = MessageCursor::from(MSG1_KEY.clone());
+        let mc2 = MessageCursor::from(MSG2_KEY.clone());
+        let mc3 = MessageCursor::from(MSG3_KEY.clone());
+        let mc4 = MessageCursor::from(MSG4_KEY.clone());
+        let mc5 = MessageCursor::from(MSG5_KEY.clone());
+        let mc6 = MessageCursor::latest();
+
+        let k1 = mc1.to_key(&info).unwrap();
+        let k2 = mc2.to_key(&info).unwrap();
+        let k3 = mc3.to_key(&info).unwrap();
+        let k4 = mc4.to_key(&info).unwrap();
+        let k5 = mc5.to_key(&info).unwrap();
+        let k6 = mc6.to_key(&info).unwrap();
+
+        // These should all be equal to their MSGN_KEYs.
+        assert_eq!(k1, &MSG1_KEY.clone());
+        assert_eq!(k2, &MSG2_KEY.clone());
+        assert_eq!(k3, &MSG3_KEY.clone());
+        assert_eq!(k4, &MSG4_KEY.clone());
+        assert_eq!(k5, &MSG5_KEY.clone());
+
+        // MessageCursor::latest() turns into the largest key (our local echo message).
+        assert_eq!(k6, &MSG1_KEY.clone());
+
+        // MessageCursor::latest() fails to convert for a room w/o messages.
+        let info_empty = RoomInfo::default();
+        assert_eq!(mc6.to_key(&info_empty), None);
+    }
+
+    #[test]
+    fn test_mc_to_from_cursor() {
+        let info = mock_room();
+        let mc1 = MessageCursor::from(MSG1_KEY.clone());
+        let mc2 = MessageCursor::from(MSG2_KEY.clone());
+        let mc3 = MessageCursor::from(MSG3_KEY.clone());
+        let mc4 = MessageCursor::from(MSG4_KEY.clone());
+        let mc5 = MessageCursor::from(MSG5_KEY.clone());
+        let mc6 = MessageCursor::latest();
+
+        let identity = |mc: &MessageCursor| {
+            let c = mc.to_cursor(&info).unwrap();
+
+            MessageCursor::from_cursor(&c, &info).unwrap()
+        };
+
+        // These should all convert to a Cursor and back to the original value.
+        assert_eq!(identity(&mc1), mc1);
+        assert_eq!(identity(&mc2), mc2);
+        assert_eq!(identity(&mc3), mc3);
+        assert_eq!(identity(&mc4), mc4);
+        assert_eq!(identity(&mc5), mc5);
+
+        // MessageCursor::latest() should point at the most recent message after conversion.
+        assert_eq!(identity(&mc6), mc1);
+    }
+}

src/message/printer.rs

@@ -0,0 +1,157 @@
+use std::borrow::Cow;
+
+use modalkit::tui::layout::Alignment;
+use modalkit::tui::style::Style;
+use modalkit::tui::text::{Span, Spans, Text};
+use unicode_width::UnicodeWidthStr;
+
+use crate::util::{space_span, take_width};
+
+pub struct TextPrinter<'a> {
+    text: Text<'a>,
+    width: usize,
+    base_style: Style,
+    hide_reply: bool,
+
+    alignment: Alignment,
+    curr_spans: Vec<Span<'a>>,
+    curr_width: usize,
+}
+
+impl<'a> TextPrinter<'a> {
+    pub fn new(width: usize, base_style: Style, hide_reply: bool) -> Self {
+        TextPrinter {
+            text: Text::default(),
+            width,
+            base_style,
+            hide_reply,
+
+            alignment: Alignment::Left,
+            curr_spans: vec![],
+            curr_width: 0,
+        }
+    }
+
+    pub fn align(mut self, alignment: Alignment) -> Self {
+        self.alignment = alignment;
+        self
+    }
+
+    pub fn hide_reply(&self) -> bool {
+        self.hide_reply
+    }
+
+    pub fn width(&self) -> usize {
+        self.width
+    }
+
+    pub fn sub(&self, indent: usize) -> Self {
+        TextPrinter {
+            text: Text::default(),
+            width: self.width.saturating_sub(indent),
+            base_style: self.base_style,
+            hide_reply: self.hide_reply,
+
+            alignment: self.alignment,
+            curr_spans: vec![],
+            curr_width: 0,
+        }
+    }
+
+    fn remaining(&self) -> usize {
+        self.width - self.curr_width
+    }
+
+    pub fn commit(&mut self) {
+        if self.curr_width > 0 {
+            self.push_break();
+        }
+    }
+
+    fn push(&mut self) {
+        self.curr_width = 0;
+        self.text.lines.push(Spans(std::mem::take(&mut self.curr_spans)));
+    }
+
+    pub fn push_break(&mut self) {
+        if self.curr_width == 0 && self.text.lines.is_empty() {
+            // Disallow leading breaks.
+            return;
+        }
+
+        let remaining = self.remaining();
+
+        if remaining > 0 {
+            match self.alignment {
+                Alignment::Left => {
+                    let tspan = space_span(remaining, self.base_style);
+                    self.curr_spans.push(tspan);
+                },
+                Alignment::Center => {
+                    let trailing = remaining / 2;
+                    let leading = remaining - trailing;
+
+                    let tspan = space_span(trailing, self.base_style);
+                    let lspan = space_span(leading, self.base_style);
+
+                    self.curr_spans.push(tspan);
+                    self.curr_spans.insert(0, lspan);
+                },
+                Alignment::Right => {
+                    let lspan = space_span(remaining, self.base_style);
+                    self.curr_spans.insert(0, lspan);
+                },
+            }
+        }
+
+        self.push();
+    }
+
+    pub fn push_str<T>(&mut self, s: T, style: Style)
+    where
+        T: Into<Cow<'a, str>>,
+    {
+        let style = self.base_style.patch(style);
+        let mut cow = s.into();
+
+        loop {
+            let sw = UnicodeWidthStr::width(cow.as_ref());
+
+            if self.curr_width + sw <= self.width {
+                // The text fits within the current line.
+                self.curr_spans.push(Span::styled(cow, style));
+                self.curr_width += sw;
+                break;
+            }
+
+            // Take a leading portion of the text that fits in the line.
+            let ((s0, w), s1) = take_width(cow, self.remaining());
+            cow = s1;
+
+            self.curr_spans.push(Span::styled(s0, style));
+            self.curr_width += w;
+
+            self.commit();
+        }
+
+        if self.curr_width == self.width {
+            // If the last bit fills the full line, start a new one.
+            self.push();
+        }
+    }
+
+    pub fn push_line(&mut self, spans: Spans<'a>) {
+        self.commit();
+        self.text.lines.push(spans);
+    }
+
+    pub fn push_text(&mut self, text: Text<'a>) {
+        self.commit();
+        self.text.lines.extend(text.lines);
+    }
+
+    pub fn finish(mut self) -> Text<'a> {
+        self.commit();
+        self.text
+    }
+}

src/tests.rs

@@ -1,29 +1,39 @@
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, HashMap};
+use std::path::PathBuf;
 
 use matrix_sdk::ruma::{
     event_id,
-    events::room::message::RoomMessageEventContent,
+    events::room::message::{OriginalRoomMessageEvent, RoomMessageEventContent},
     server_name,
     user_id,
     EventId,
+    OwnedEventId,
     OwnedRoomId,
     OwnedUserId,
     RoomId,
     UInt,
 };
 
-use std::path::PathBuf;
-use std::sync::mpsc::sync_channel;
-use url::Url;
-
 use lazy_static::lazy_static;
+use modalkit::tui::style::{Color, Style};
+use tokio::sync::mpsc::unbounded_channel;
+use url::Url;
 
 use crate::{
     base::{ChatStore, ProgramStore, RoomFetchStatus, RoomInfo},
-    config::{ApplicationSettings, DirectoryValues, ProfileConfig, TunableValues},
+    config::{
+        user_color,
+        user_style_from_color,
+        ApplicationSettings,
+        DirectoryValues,
+        ProfileConfig,
+        TunableValues,
+        UserColor,
+        UserDisplayTunables,
+    },
     message::{
         Message,
-        MessageContent,
+        MessageEvent,
         MessageKey,
         MessageTimeStamp::{LocalEcho, OriginServer},
         Messages,
@@ -35,57 +45,88 @@ lazy_static! {
     pub static ref TEST_ROOM1_ID: OwnedRoomId = RoomId::new(server_name!("example.com")).to_owned();
     pub static ref TEST_USER1: OwnedUserId = user_id!("@user1:example.com").to_owned();
     pub static ref TEST_USER2: OwnedUserId = user_id!("@user2:example.com").to_owned();
-    pub static ref TEST_USER3: OwnedUserId = user_id!("@user2:example.com").to_owned();
+    pub static ref TEST_USER3: OwnedUserId = user_id!("@user3:example.com").to_owned();
-    pub static ref TEST_USER4: OwnedUserId = user_id!("@user2:example.com").to_owned();
+    pub static ref TEST_USER4: OwnedUserId = user_id!("@user4:example.com").to_owned();
-    pub static ref TEST_USER5: OwnedUserId = user_id!("@user2:example.com").to_owned();
+    pub static ref TEST_USER5: OwnedUserId = user_id!("@user5:example.com").to_owned();
-    pub static ref MSG1_KEY: MessageKey = (LocalEcho, EventId::new(server_name!("example.com")));
+    pub static ref MSG1_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
-    pub static ref MSG2_KEY: MessageKey =
+    pub static ref MSG2_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
-        (OriginServer(UInt::new(1).unwrap()), EventId::new(server_name!("example.com")));
+    pub static ref MSG3_EVID: OwnedEventId =
-    pub static ref MSG3_KEY: MessageKey = (
+        event_id!("$5jRz3KfVhaUzXtVj7k:example.com").to_owned();
-        OriginServer(UInt::new(2).unwrap()),
+    pub static ref MSG4_EVID: OwnedEventId =
-        event_id!("$5jRz3KfVhaUzXtVj7k:example.com").to_owned()
+        event_id!("$JP6qFV7WyXk5ZnexM3:example.com").to_owned();
-    );
+    pub static ref MSG5_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
-    pub static ref MSG4_KEY: MessageKey = (
+    pub static ref MSG1_KEY: MessageKey = (LocalEcho, MSG1_EVID.clone());
-        OriginServer(UInt::new(2).unwrap()),
+    pub static ref MSG2_KEY: MessageKey = (OriginServer(UInt::new(1).unwrap()), MSG2_EVID.clone());
-        event_id!("$JP6qFV7WyXk5ZnexM3:example.com").to_owned()
+    pub static ref MSG3_KEY: MessageKey = (OriginServer(UInt::new(2).unwrap()), MSG3_EVID.clone());
-    );
+    pub static ref MSG4_KEY: MessageKey = (OriginServer(UInt::new(2).unwrap()), MSG4_EVID.clone());
-    pub static ref MSG5_KEY: MessageKey =
+    pub static ref MSG5_KEY: MessageKey = (OriginServer(UInt::new(8).unwrap()), MSG5_EVID.clone());
-        (OriginServer(UInt::new(8).unwrap()), EventId::new(server_name!("example.com")));
+}
+
+pub fn user_style(user: &str) -> Style {
+    user_style_from_color(user_color(user))
+}
+
+pub fn mock_room1_message(
+    content: RoomMessageEventContent,
+    sender: OwnedUserId,
+    key: MessageKey,
+) -> Message {
+    let origin_server_ts = key.0.as_millis().unwrap();
+    let event_id = key.1;
+
+    let event = OriginalRoomMessageEvent {
+        content,
+        event_id,
+        sender,
+        origin_server_ts,
+        room_id: TEST_ROOM1_ID.clone(),
+        unsigned: Default::default(),
+    };
+
+    event.into()
 }
 
 pub fn mock_message1() -> Message {
     let content = RoomMessageEventContent::text_plain("writhe");
-    let content = MessageContent::Original(content.into());
+    let content = MessageEvent::Local(MSG1_EVID.clone(), content.into());
 
     Message::new(content, TEST_USER1.clone(), MSG1_KEY.0)
 }
 
 pub fn mock_message2() -> Message {
     let content = RoomMessageEventContent::text_plain("helium");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG2_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG2_KEY.clone())
 }
 
 pub fn mock_message3() -> Message {
     let content = RoomMessageEventContent::text_plain("this\nis\na\nmultiline\nmessage");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG3_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG3_KEY.clone())
 }
 
 pub fn mock_message4() -> Message {
     let content = RoomMessageEventContent::text_plain("help");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER1.clone(), MSG4_KEY.0)
+    mock_room1_message(content, TEST_USER1.clone(), MSG4_KEY.clone())
 }
 
 pub fn mock_message5() -> Message {
     let content = RoomMessageEventContent::text_plain("character");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG5_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG4_KEY.clone())
+}
+
+pub fn mock_keys() -> HashMap<OwnedEventId, MessageKey> {
+    let mut keys = HashMap::new();
+
+    keys.insert(MSG1_EVID.clone(), MSG1_KEY.clone());
+    keys.insert(MSG2_EVID.clone(), MSG2_KEY.clone());
+    keys.insert(MSG3_EVID.clone(), MSG3_KEY.clone());
+    keys.insert(MSG4_EVID.clone(), MSG4_KEY.clone());
+    keys.insert(MSG5_EVID.clone(), MSG5_KEY.clone());
+
+    keys
 }
 
 pub fn mock_messages() -> Messages {
@@ -103,7 +144,14 @@ pub fn mock_messages() -> Messages {
 pub fn mock_room() -> RoomInfo {
     RoomInfo {
         name: Some("Watercooler Discussion".into()),
+        tags: None,
+
+        keys: mock_keys(),
         messages: mock_messages(),
+
+        receipts: HashMap::new(),
+        read_till: None,
+
         fetch_id: RoomFetchStatus::NotStarted,
         fetch_last: None,
         users_typing: None,
@@ -118,6 +166,22 @@ pub fn mock_dirs() -> DirectoryValues {
     }
 }
 
+pub fn mock_tunables() -> TunableValues {
+    TunableValues {
+        default_room: None,
+        read_receipt_send: true,
+        read_receipt_display: true,
+        typing_notice_send: true,
+        typing_notice_display: true,
+        users: vec![(TEST_USER5.clone(), UserDisplayTunables {
+            color: Some(UserColor(Color::Black)),
+            name: Some("USER 5".into()),
+        })]
+        .into_iter()
+        .collect::<HashMap<_, _>>(),
+    }
+}
+
 pub fn mock_settings() -> ApplicationSettings {
     ApplicationSettings {
         matrix_dir: PathBuf::new(),
@@ -129,14 +193,16 @@ pub fn mock_settings() -> ApplicationSettings {
             settings: None,
             dirs: None,
         },
-        tunables: TunableValues { typing_notice: true, typing_notice_display: true },
+        tunables: mock_tunables(),
         dirs: mock_dirs(),
     }
 }
 
-pub fn mock_store() -> ProgramStore {
+pub async fn mock_store() -> ProgramStore {
-    let (tx, _) = sync_channel(5);
+    let (tx, _) = unbounded_channel();
-    let worker = Requester { tx };
+    let homeserver = Url::parse("https://localhost").unwrap();
+    let client = matrix_sdk::Client::new(homeserver).await.unwrap();
+    let worker = Requester { tx, client };
 
     let mut store = ChatStore::new(worker, mock_settings());
     let room_id = TEST_ROOM1_ID.clone();

src/util.rs

@@ -0,0 +1,191 @@
+use std::borrow::Cow;
+
+use unicode_segmentation::UnicodeSegmentation;
+use unicode_width::UnicodeWidthStr;
+
+use modalkit::tui::style::Style;
+use modalkit::tui::text::{Span, Spans, Text};
+
+pub fn split_cow(cow: Cow<'_, str>, idx: usize) -> (Cow<'_, str>, Cow<'_, str>) {
+    match cow {
+        Cow::Borrowed(s) => {
+            let s1 = Cow::Borrowed(&s[idx..]);
+            let s0 = Cow::Borrowed(&s[..idx]);
+
+            (s0, s1)
+        },
+        Cow::Owned(mut s) => {
+            let s1 = Cow::Owned(s.split_off(idx));
+            let s0 = Cow::Owned(s);
+
+            (s0, s1)
+        },
+    }
+}
+
+pub fn take_width(s: Cow<'_, str>, width: usize) -> ((Cow<'_, str>, usize), Cow<'_, str>) {
+    // Find where to split the line.
+    let mut idx = 0;
+    let mut w = 0;
+
+    for (i, g) in UnicodeSegmentation::grapheme_indices(s.as_ref(), true) {
+        let gw = UnicodeWidthStr::width(g);
+        idx = i;
+
+        if w + gw > width {
+            break;
+        }
+
+        w += gw;
+    }
+
+    let (s0, s1) = split_cow(s, idx);
+
+    ((s0, w), s1)
+}
+
+pub struct WrappedLinesIterator<'a> {
+    iter: std::vec::IntoIter<Cow<'a, str>>,
+    curr: Option<Cow<'a, str>>,
+    width: usize,
+}
+
+impl<'a> WrappedLinesIterator<'a> {
+    fn new<T>(input: T, width: usize) -> Self
+    where
+        T: Into<Cow<'a, str>>,
+    {
+        let width = width.max(2);
+
+        let cows: Vec<Cow<'a, str>> = match input.into() {
+            Cow::Borrowed(s) => s.lines().map(Cow::Borrowed).collect(),
+            Cow::Owned(s) => s.lines().map(ToOwned::to_owned).map(Cow::Owned).collect(),
+        };
+
+        WrappedLinesIterator { iter: cows.into_iter(), curr: None, width }
+    }
+}
+
+impl<'a> Iterator for WrappedLinesIterator<'a> {
+    type Item = (Cow<'a, str>, usize);
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.curr.is_none() {
+            self.curr = self.iter.next();
+        }
+
+        if let Some(s) = self.curr.take() {
+            let width = UnicodeWidthStr::width(s.as_ref());
+
+            if width <= self.width {
+                return Some((s, width));
+            } else {
+                let (prefix, s1) = take_width(s, self.width);
+                self.curr = Some(s1);
+                return Some(prefix);
+            }
+        } else {
+            return None;
+        }
+    }
+}
+
+pub fn wrap<'a, T>(input: T, width: usize) -> WrappedLinesIterator<'a>
+where
+    T: Into<Cow<'a, str>>,
+{
+    WrappedLinesIterator::new(input, width)
+}
+
+pub fn wrapped_text<'a, T>(s: T, width: usize, style: Style) -> Text<'a>
+where
+    T: Into<Cow<'a, str>>,
+{
+    let mut text = Text::default();
+
+    for (line, w) in wrap(s, width) {
+        let space = space_span(width.saturating_sub(w), style);
+        let spans = Spans(vec![Span::styled(line, style), space]);
+
+        text.lines.push(spans);
+    }
+
+    return text;
+}
+
+pub fn space(width: usize) -> String {
+    " ".repeat(width)
+}
+
+pub fn space_span(width: usize, style: Style) -> Span<'static> {
+    Span::styled(space(width), style)
+}
+
+pub fn space_text(width: usize, style: Style) -> Text<'static> {
+    space_span(width, style).into()
+}
+
+pub fn join_cell_text<'a>(texts: Vec<(Text<'a>, usize)>, join: Span<'a>, style: Style) -> Text<'a> {
+    let height = texts.iter().map(|t| t.0.height()).max().unwrap_or(0);
+    let mut text = Text { lines: vec![Spans(vec![join.clone()]); height] };
+
+    for (mut t, w) in texts.into_iter() {
+        for i in 0..height {
+            if let Some(spans) = t.lines.get_mut(i) {
+                text.lines[i].0.append(&mut spans.0);
+            } else {
+                text.lines[i].0.push(space_span(w, style));
+            }
+
+            text.lines[i].0.push(join.clone());
+        }
+    }
+
+    text
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    #[test]
+    fn test_wrapped_lines_ascii() {
+        let s = "hello world!\nabcdefghijklmnopqrstuvwxyz\ngoodbye";
+
+        let mut iter = wrap(s, 100);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("hello world!"), 12)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("abcdefghijklmnopqrstuvwxyz"), 26)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("goodbye"), 7)));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = wrap(s, 5);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("hello"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed(" worl"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("d!"), 2)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("abcde"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("fghij"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("klmno"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("pqrst"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("uvwxy"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("z"), 1)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("goodb"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ye"), 2)));
+        assert_eq!(iter.next(), None);
+    }
+
+    #[test]
+    fn test_wrapped_lines_unicode() {
+        let s = "ＣＨＩＣＫＥＮ";
+
+        let mut iter = wrap(s, 14);
+        assert_eq!(iter.next(), Some((Cow::Borrowed(s), 14)));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = wrap(s, 5);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＣＨ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＩＣ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＫＥ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("Ｎ"), 2)));
+        assert_eq!(iter.next(), None);
+    }
+}

src/windows/mod.rs

@@ -4,7 +4,12 @@ use std::collections::hash_map::Entry;
 use matrix_sdk::{
     encryption::verification::{format_emojis, SasVerification},
     room::{Room as MatrixRoom, RoomMember},
-    ruma::{events::room::member::MembershipState, OwnedRoomId, RoomId},
+    ruma::{
+        events::room::member::MembershipState,
+        events::tag::{TagName, Tags},
+        OwnedRoomId,
+        RoomId,
+    },
     DisplayName,
 };
 
@@ -51,19 +56,19 @@ use modalkit::{
     },
 };
 
-use crate::{
+use crate::base::{
-    base::{
     ChatStore,
     IambBufferId,
+    IambError,
     IambId,
     IambInfo,
     IambResult,
+    MessageAction,
     ProgramAction,
     ProgramContext,
     ProgramStore,
     RoomAction,
-    },
+    SendAction,
-    message::user_style,
 };
 
 use self::{room::RoomState, welcome::WelcomeState};
@@ -105,6 +110,71 @@ fn selected_text(s: &str, selected: bool) -> Text {
     Text::from(selected_span(s, selected))
 }
 
+fn room_cmp(a: &MatrixRoom, b: &MatrixRoom) -> Ordering {
+    let ca1 = a.canonical_alias();
+    let ca2 = b.canonical_alias();
+
+    let ord = match (ca1, ca2) {
+        (None, None) => Ordering::Equal,
+        (None, Some(_)) => Ordering::Greater,
+        (Some(_), None) => Ordering::Less,
+        (Some(ca1), Some(ca2)) => ca1.cmp(&ca2),
+    };
+
+    ord.then_with(|| a.room_id().cmp(b.room_id()))
+}
+
+fn tag_cmp(a: &Option<Tags>, b: &Option<Tags>) -> Ordering {
+    let (fava, lowa) = a
+        .as_ref()
+        .map(|tags| {
+            (tags.contains_key(&TagName::Favorite), tags.contains_key(&TagName::LowPriority))
+        })
+        .unwrap_or((false, false));
+
+    let (favb, lowb) = b
+        .as_ref()
+        .map(|tags| {
+            (tags.contains_key(&TagName::Favorite), tags.contains_key(&TagName::LowPriority))
+        })
+        .unwrap_or((false, false));
+
+    // If a has Favorite and b doesn't, it should sort earlier in room list.
+    let cmpf = favb.cmp(&fava);
+
+    // If a has LowPriority and b doesn't, it should sort later in room list.
+    let cmpl = lowa.cmp(&lowb);
+
+    cmpl.then(cmpf)
+}
+
+fn append_tags<'a>(tags: &'a Tags, spans: &mut Vec<Span<'a>>, style: Style) {
+    if tags.is_empty() {
+        return;
+    }
+
+    spans.push(Span::styled(" (", style));
+
+    for (i, tag) in tags.keys().enumerate() {
+        if i > 0 {
+            spans.push(Span::styled(", ", style));
+        }
+
+        match tag {
+            TagName::Favorite => spans.push(Span::styled("Favorite", style)),
+            TagName::LowPriority => spans.push(Span::styled("Low Priority", style)),
+            TagName::ServerNotice => spans.push(Span::styled("Server Notice", style)),
+            TagName::User(tag) => {
+                spans.push(Span::styled("User Tag: ", style));
+                spans.push(Span::styled(tag.as_ref(), style));
+            },
+            tag => spans.push(Span::styled(format!("{:?}", tag), style)),
+        }
+    }
+
+    spans.push(Span::styled(")", style));
+}
+
 #[inline]
 fn room_prompt(
     room_id: &RoomId,
@@ -168,19 +238,42 @@ impl IambWindow {
         }
     }
 
-    pub fn room_command(
+    pub async fn message_command(
+        &mut self,
+        act: MessageAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        if let IambWindow::Room(w) = self {
+            w.message_command(act, ctx, store).await
+        } else {
+            return Err(IambError::NoSelectedRoom.into());
+        }
+    }
+
+    pub async fn room_command(
         &mut self,
         act: RoomAction,
         ctx: ProgramContext,
         store: &mut ProgramStore,
     ) -> IambResult<Vec<(Action<IambInfo>, ProgramContext)>> {
         if let IambWindow::Room(w) = self {
-            w.room_command(act, ctx, store)
+            w.room_command(act, ctx, store).await
         } else {
-            let msg = "No room currently focused!";
+            return Err(IambError::NoSelectedRoomOrSpace.into());
-            let err = UIError::Failure(msg.into());
+        }
+    }
 
-            return Err(err);
+    pub async fn send_command(
+        &mut self,
+        act: SendAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        if let IambWindow::Room(w) = self {
+            w.send_command(act, ctx, store).await
+        } else {
+            return Err(IambError::NoSelectedRoom.into());
         }
     }
 }
@@ -284,8 +377,13 @@ impl WindowOps<IambInfo> for IambWindow {
             IambWindow::Room(state) => state.draw(area, buf, focused, store),
             IambWindow::DirectList(state) => {
                 let dms = store.application.worker.direct_messages();
-                let items = dms.into_iter().map(|(id, name)| DirectItem::new(id, name, store));
+                let mut items = dms
-                state.set(items.collect());
+                    .into_iter()
+                    .map(|(id, name, tags)| DirectItem::new(id, name, tags, store))
+                    .collect::<Vec<_>>();
+                items.sort();
+
+                state.set(items);
 
                 List::new(store)
                     .empty_message("No direct messages yet!")
@@ -306,9 +404,14 @@ impl WindowOps<IambInfo> for IambWindow {
                     .render(area, buf, state);
             },
             IambWindow::RoomList(state) => {
-                let joined = store.application.worker.joined_rooms();
+                let joined = store.application.worker.active_rooms();
-                let items = joined.into_iter().map(|(id, name)| RoomItem::new(id, name, store));
+                let mut items = joined
-                state.set(items.collect());
+                    .into_iter()
+                    .map(|(room, name, tags)| RoomItem::new(room, name, tags, store))
+                    .collect::<Vec<_>>();
+                items.sort();
+
+                state.set(items);
 
                 List::new(store)
                     .empty_message("You haven't joined any rooms yet")
@@ -429,8 +532,8 @@ impl Window<IambInfo> for IambWindow {
     fn open(id: IambId, store: &mut ProgramStore) -> IambResult<Self> {
         match id {
             IambId::Room(room_id) => {
-                let (room, name) = store.application.worker.get_room(room_id)?;
+                let (room, name, tags) = store.application.worker.get_room(room_id)?;
-                let room = RoomState::new(room, name, store);
+                let room = RoomState::new(room, name, tags, store);
 
                 return Ok(room.into());
             },
@@ -477,8 +580,8 @@ impl Window<IambInfo> for IambWindow {
                 let room_id = worker.join_room(v.key().to_string())?;
                 v.insert(room_id.clone());
 
-                let (room, name) = store.application.worker.get_room(room_id)?;
+                let (room, name, tags) = store.application.worker.get_room(room_id)?;
-                let room = RoomState::new(room, name, store);
+                let room = RoomState::new(room, name, tags, store);
 
                 Ok(room.into())
             },
@@ -505,16 +608,44 @@ impl Window<IambInfo> for IambWindow {
 #[derive(Clone)]
 pub struct RoomItem {
     room: MatrixRoom,
+    tags: Option<Tags>,
     name: String,
 }
 
 impl RoomItem {
-    fn new(room: MatrixRoom, name: DisplayName, store: &mut ProgramStore) -> Self {
+    fn new(
+        room: MatrixRoom,
+        name: DisplayName,
+        tags: Option<Tags>,
+        store: &mut ProgramStore,
+    ) -> Self {
         let name = name.to_string();
 
-        store.application.set_room_name(room.room_id(), name.as_str());
+        let info = store.application.get_room_info(room.room_id().to_owned());
+        info.name = name.clone().into();
+        info.tags = tags.clone();
 
-        RoomItem { room, name }
+        RoomItem { room, tags, name }
+    }
+}
+
+impl PartialEq for RoomItem {
+    fn eq(&self, other: &Self) -> bool {
+        self.room.room_id() == other.room.room_id()
+    }
+}
+
+impl Eq for RoomItem {}
+
+impl Ord for RoomItem {
+    fn cmp(&self, other: &Self) -> Ordering {
+        tag_cmp(&self.tags, &other.tags).then_with(|| room_cmp(&self.room, &other.room))
+    }
+}
+
+impl PartialOrd for RoomItem {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.cmp(other).into()
     }
 }
 
@@ -526,8 +657,17 @@ impl ToString for RoomItem {
 
 impl ListItem<IambInfo> for RoomItem {
     fn show(&self, selected: bool, _: &ViewportContext<ListCursor>, _: &mut ProgramStore) -> Text {
+        if let Some(tags) = &self.tags {
+            let style = selected_style(selected);
+            let mut spans = vec![Span::styled(self.name.as_str(), style)];
+
+            append_tags(tags, &mut spans, style);
+
+            Text::from(Spans(spans))
+        } else {
             selected_text(self.name.as_str(), selected)
         }
+    }
 
     fn get_word(&self) -> Option<String> {
         self.room.room_id().to_string().into()
@@ -548,16 +688,22 @@ impl Promptable<ProgramContext, ProgramStore, IambInfo> for RoomItem {
 #[derive(Clone)]
 pub struct DirectItem {
     room: MatrixRoom,
+    tags: Option<Tags>,
     name: String,
 }
 
 impl DirectItem {
-    fn new(room: MatrixRoom, name: DisplayName, store: &mut ProgramStore) -> Self {
+    fn new(
+        room: MatrixRoom,
+        name: DisplayName,
+        tags: Option<Tags>,
+        store: &mut ProgramStore,
+    ) -> Self {
         let name = name.to_string();
 
         store.application.set_room_name(room.room_id(), name.as_str());
 
-        DirectItem { room, name }
+        DirectItem { room, tags, name }
     }
 }
 
@@ -569,14 +715,43 @@ impl ToString for DirectItem {
 
 impl ListItem<IambInfo> for DirectItem {
     fn show(&self, selected: bool, _: &ViewportContext<ListCursor>, _: &mut ProgramStore) -> Text {
+        if let Some(tags) = &self.tags {
+            let style = selected_style(selected);
+            let mut spans = vec![Span::styled(self.name.as_str(), style)];
+
+            append_tags(tags, &mut spans, style);
+
+            Text::from(Spans(spans))
+        } else {
             selected_text(self.name.as_str(), selected)
         }
+    }
 
     fn get_word(&self) -> Option<String> {
         self.room.room_id().to_string().into()
     }
 }
 
+impl PartialEq for DirectItem {
+    fn eq(&self, other: &Self) -> bool {
+        self.room.room_id() == other.room.room_id()
+    }
+}
+
+impl Eq for DirectItem {}
+
+impl Ord for DirectItem {
+    fn cmp(&self, other: &Self) -> Ordering {
+        tag_cmp(&self.tags, &other.tags).then_with(|| room_cmp(&self.room, &other.room))
+    }
+}
+
+impl PartialOrd for DirectItem {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.cmp(other).into()
+    }
+}
+
 impl Promptable<ProgramContext, ProgramStore, IambInfo> for DirectItem {
     fn prompt(
         &mut self,
@@ -604,6 +779,26 @@ impl SpaceItem {
     }
 }
 
+impl PartialEq for SpaceItem {
+    fn eq(&self, other: &Self) -> bool {
+        self.room.room_id() == other.room.room_id()
+    }
+}
+
+impl Eq for SpaceItem {}
+
+impl Ord for SpaceItem {
+    fn cmp(&self, other: &Self) -> Ordering {
+        room_cmp(&self.room, &other.room)
+    }
+}
+
+impl PartialOrd for SpaceItem {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.cmp(other).into()
+    }
+}
+
 impl ToString for SpaceItem {
     fn to_string(&self) -> String {
         return self.room.room_id().to_string();
@@ -845,15 +1040,18 @@ impl ToString for MemberItem {
 }
 
 impl ListItem<IambInfo> for MemberItem {
-    fn show(&self, selected: bool, _: &ViewportContext<ListCursor>, _: &mut ProgramStore) -> Text {
+    fn show(
-        let mut style = user_style(self.member.user_id().as_str());
+        &self,
+        selected: bool,
+        _: &ViewportContext<ListCursor>,
+        store: &mut ProgramStore,
+    ) -> Text {
+        let mut user = store.application.settings.get_user_span(self.member.user_id());
 
         if selected {
-            style = style.add_modifier(StyleModifier::REVERSED);
+            user.style = user.style.add_modifier(StyleModifier::REVERSED);
         }
 
-        let user = Span::styled(self.to_string(), style);
-
         let state = match self.member.membership() {
             MembershipState::Ban => Span::raw(" (banned)").into(),
             MembershipState::Invite => Span::raw(" (invited)").into(),

src/windows/room/chat.rs

@@ -1,11 +1,34 @@
+use std::borrow::Cow;
+use std::ffi::OsStr;
+use std::fs;
+use std::ops::Deref;
+use std::path::{Path, PathBuf};
+
 use matrix_sdk::{
+    attachment::AttachmentConfig,
+    media::{MediaFormat, MediaRequest},
     room::Room as MatrixRoom,
-    ruma::{OwnedRoomId, RoomId},
+    ruma::{
+        events::room::message::{
+            MessageType,
+            OriginalRoomMessageEvent,
+            Relation,
+            Replacement,
+            RoomMessageEventContent,
+            TextMessageEventContent,
+        },
+        OwnedRoomId,
+        RoomId,
+    },
 };
 
-use modalkit::tui::{buffer::Buffer, layout::Rect, widgets::StatefulWidget};
-
 use modalkit::{
+    tui::{
+        buffer::Buffer,
+        layout::Rect,
+        text::{Span, Spans},
+        widgets::{Paragraph, StatefulWidget, Widget},
+    },
     widgets::textbox::{TextBox, TextBoxState},
     widgets::TerminalCursor,
     widgets::{PromptActions, WindowOps},
@@ -18,10 +41,12 @@ use modalkit::editing::{
         EditResult,
         Editable,
         EditorAction,
+        InfoMessage,
         Jumpable,
         PromptAction,
         Promptable,
         Scrollable,
+        UIError,
     },
     base::{CloseFlags, Count, MoveDir1D, PositionList, ScrollStyle, WordStyle},
     context::Resolve,
@@ -32,14 +57,20 @@ use modalkit::editing::{
 use crate::base::{
     IambAction,
     IambBufferId,
+    IambError,
     IambInfo,
     IambResult,
+    MessageAction,
     ProgramAction,
     ProgramContext,
     ProgramStore,
     RoomFocus,
+    RoomInfo,
+    SendAction,
 };
 
+use crate::message::{Message, MessageEvent, MessageKey, MessageTimeStamp};
+
 use super::scrollback::{Scrollback, ScrollbackState};
 
 pub struct ChatState {
@@ -52,6 +83,9 @@ pub struct ChatState {
 
     scrollback: ScrollbackState,
     focus: RoomFocus,
+
+    reply_to: Option<MessageKey>,
+    editing: Option<MessageKey>,
 }
 
 impl ChatState {
@@ -72,9 +106,289 @@ impl ChatState {
 
             scrollback,
             focus: RoomFocus::MessageBar,
+
+            reply_to: None,
+            editing: None,
         }
     }
 
+    fn get_reply_to<'a>(&self, info: &'a RoomInfo) -> Option<&'a OriginalRoomMessageEvent> {
+        let key = self.reply_to.as_ref()?;
+        let msg = info.messages.get(key)?;
+
+        if let MessageEvent::Original(ev) = &msg.event {
+            Some(ev)
+        } else {
+            None
+        }
+    }
+
+    fn reset(&mut self) -> EditRope {
+        self.reply_to = None;
+        self.editing = None;
+        self.tbox.reset()
+    }
+
+    pub fn refresh_room(&mut self, store: &mut ProgramStore) {
+        if let Some(room) = store.application.worker.client.get_room(self.id()) {
+            self.room = room;
+        }
+    }
+
+    pub async fn message_command(
+        &mut self,
+        act: MessageAction,
+        _: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        let client = &store.application.worker.client;
+
+        let settings = &store.application.settings;
+        let info = store.application.rooms.entry(self.room_id.clone()).or_default();
+
+        let msg = self.scrollback.get_mut(info).ok_or(IambError::NoSelectedMessage)?;
+
+        match act {
+            MessageAction::Cancel => {
+                self.reply_to = None;
+                self.editing = None;
+
+                Ok(None)
+            },
+            MessageAction::Download(filename, force) => {
+                if let MessageEvent::Original(ev) = &msg.event {
+                    let media = client.media();
+
+                    let mut filename = match filename {
+                        Some(f) => PathBuf::from(f),
+                        None => settings.dirs.downloads.clone(),
+                    };
+
+                    let source = match &ev.content.msgtype {
+                        MessageType::Audio(c) => {
+                            if filename.is_dir() {
+                                filename.push(c.body.as_str());
+                            }
+
+                            c.source.clone()
+                        },
+                        MessageType::File(c) => {
+                            if filename.is_dir() {
+                                if let Some(name) = &c.filename {
+                                    filename.push(name);
+                                } else {
+                                    filename.push(c.body.as_str());
+                                }
+                            }
+
+                            c.source.clone()
+                        },
+                        MessageType::Image(c) => {
+                            if filename.is_dir() {
+                                filename.push(c.body.as_str());
+                            }
+
+                            c.source.clone()
+                        },
+                        MessageType::Video(c) => {
+                            if filename.is_dir() {
+                                filename.push(c.body.as_str());
+                            }
+
+                            c.source.clone()
+                        },
+                        _ => {
+                            return Err(IambError::NoAttachment.into());
+                        },
+                    };
+
+                    if !force && filename.exists() {
+                        let msg = format!(
+                            "The file {} already exists; use :download! to overwrite it.",
+                            filename.display()
+                        );
+                        let err = UIError::Failure(msg);
+
+                        return Err(err);
+                    }
+
+                    let req = MediaRequest { source, format: MediaFormat::File };
+
+                    let bytes =
+                        media.get_media_content(&req, true).await.map_err(IambError::from)?;
+
+                    fs::write(filename.as_path(), bytes.as_slice())?;
+
+                    msg.downloaded = true;
+
+                    let info = InfoMessage::from(format!(
+                        "Attachment downloaded to {}",
+                        filename.display()
+                    ));
+
+                    return Ok(info.into());
+                }
+
+                Err(IambError::NoAttachment.into())
+            },
+            MessageAction::Edit => {
+                if msg.sender != settings.profile.user_id {
+                    let msg = "Cannot edit messages sent by someone else";
+                    let err = UIError::Failure(msg.into());
+
+                    return Err(err);
+                }
+
+                let ev = match &msg.event {
+                    MessageEvent::Original(ev) => &ev.content,
+                    MessageEvent::Local(_, ev) => ev.deref(),
+                    _ => {
+                        let msg = "Cannot edit a redacted message";
+                        let err = UIError::Failure(msg.into());
+
+                        return Err(err);
+                    },
+                };
+
+                let text = match &ev.msgtype {
+                    MessageType::Text(msg) => msg.body.as_str(),
+                    _ => {
+                        let msg = "Cannot edit a non-text message";
+                        let err = UIError::Failure(msg.into());
+
+                        return Err(err);
+                    },
+                };
+
+                self.tbox.set_text(text);
+                self.editing = self.scrollback.get_key(info);
+                self.focus = RoomFocus::MessageBar;
+
+                Ok(None)
+            },
+            MessageAction::Redact(reason) => {
+                let room = store
+                    .application
+                    .worker
+                    .client
+                    .get_joined_room(self.id())
+                    .ok_or(IambError::NotJoined)?;
+
+                let event_id = match &msg.event {
+                    MessageEvent::Original(ev) => ev.event_id.clone(),
+                    MessageEvent::Local(event_id, _) => event_id.clone(),
+                    MessageEvent::Redacted(_) => {
+                        let msg = "";
+                        let err = UIError::Failure(msg.into());
+
+                        return Err(err);
+                    },
+                };
+
+                let event_id = event_id.as_ref();
+                let reason = reason.as_deref();
+                let _ = room.redact(event_id, reason, None).await.map_err(IambError::from)?;
+
+                Ok(None)
+            },
+            MessageAction::Reply => {
+                self.reply_to = self.scrollback.get_key(info);
+                self.focus = RoomFocus::MessageBar;
+
+                Ok(None)
+            },
+        }
+    }
+
+    pub async fn send_command(
+        &mut self,
+        act: SendAction,
+        _: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        let room = store
+            .application
+            .worker
+            .client
+            .get_joined_room(self.id())
+            .ok_or(IambError::NotJoined)?;
+        let info = store.application.rooms.entry(self.id().to_owned()).or_default();
+        let mut show_echo = true;
+
+        let (event_id, msg) = match act {
+            SendAction::Submit => {
+                let msg = self.tbox.get_text();
+
+                if msg.is_empty() {
+                    return Ok(None);
+                }
+
+                let msg = TextMessageEventContent::markdown(msg);
+                let msg = MessageType::Text(msg);
+
+                let mut msg = RoomMessageEventContent::new(msg);
+
+                if let Some((_, event_id)) = &self.editing {
+                    msg.relates_to = Some(Relation::Replacement(Replacement::new(
+                        event_id.clone(),
+                        Box::new(msg.clone()),
+                    )));
+
+                    show_echo = false;
+                } else if let Some(m) = self.get_reply_to(info) {
+                    // XXX: Switch to RoomMessageEventContent::reply() once it's stable?
+                    msg = msg.make_reply_to(m);
+                }
+
+                // XXX: second parameter can be a locally unique transaction id.
+                // Useful for doing retries.
+                let resp = room.send(msg.clone(), None).await.map_err(IambError::from)?;
+                let event_id = resp.event_id;
+
+                // Reset message bar state now that it's been sent.
+                self.reset();
+
+                (event_id, msg)
+            },
+            SendAction::Upload(file) => {
+                let path = Path::new(file.as_str());
+                let mime = mime_guess::from_path(path).first_or(mime::APPLICATION_OCTET_STREAM);
+
+                let bytes = fs::read(path)?;
+                let name = path
+                    .file_name()
+                    .map(OsStr::to_string_lossy)
+                    .unwrap_or_else(|| Cow::from("Attachment"));
+                let config = AttachmentConfig::new();
+
+                let resp = room
+                    .send_attachment(name.as_ref(), &mime, bytes.as_ref(), config)
+                    .await
+                    .map_err(IambError::from)?;
+
+                // Mock up the local echo message for the scrollback.
+                let msg = TextMessageEventContent::plain(format!("[Attached File: {}]", name));
+                let msg = MessageType::Text(msg);
+                let msg = RoomMessageEventContent::new(msg);
+
+                (resp.event_id, msg)
+            },
+        };
+
+        if show_echo {
+            let user = store.application.settings.profile.user_id.clone();
+            let key = (MessageTimeStamp::LocalEcho, event_id.clone());
+            let msg = MessageEvent::Local(event_id, msg.into());
+            let msg = Message::new(msg, user, MessageTimeStamp::LocalEcho);
+            info.messages.insert(key, msg);
+        }
+
+        // Jump to the end of the scrollback to show the message.
+        self.scrollback.goto_latest();
+
+        Ok(None)
+    }
+
     pub fn focus_toggle(&mut self) {
         self.focus = match self.focus {
             RoomFocus::Scrollback => RoomFocus::MessageBar,
@@ -100,7 +414,7 @@ impl ChatState {
             return;
         }
 
-        if !store.application.settings.tunables.typing_notice {
+        if !store.application.settings.tunables.typing_notice_send {
             return;
         }
 
@@ -147,6 +461,9 @@ impl WindowOps<IambInfo> for ChatState {
 
             scrollback: self.scrollback.dup(store),
             focus: self.focus,
+
+            reply_to: None,
+            editing: None,
         }
     }
 
@@ -229,17 +546,9 @@ impl PromptActions<ProgramContext, ProgramStore, IambInfo> for ChatState {
         ctx: &ProgramContext,
         _: &mut ProgramStore,
     ) -> EditResult<Vec<(ProgramAction, ProgramContext)>, IambInfo> {
-        let txt = self.tbox.reset_text();
+        let act = SendAction::Submit;
 
-        let act = if txt.is_empty() {
+        Ok(vec![(IambAction::from(act).into(), ctx.clone())])
-            vec![]
-        } else {
-            let act = IambAction::SendMessage(self.room_id.clone(), txt).into();
-
-            vec![(act, ctx.clone())]
-        };
-
-        Ok(act)
     }
 
     fn abort(
@@ -254,7 +563,7 @@ impl PromptActions<ProgramContext, ProgramStore, IambInfo> for ChatState {
             return Ok(vec![]);
         }
 
-        let text = self.tbox.reset().trim();
+        let text = self.reset().trim();
 
         if text.is_empty() {
             let _ = self.sent.end();
@@ -328,15 +637,40 @@ impl<'a> StatefulWidget for Chat<'a> {
         let lines = state.tbox.has_lines(5).max(1) as u16;
         let drawh = area.height;
         let texth = lines.min(drawh).clamp(1, 5);
-        let scrollh = drawh.saturating_sub(texth);
+        let desch = if state.reply_to.is_some() {
+            drawh.saturating_sub(texth).min(1)
+        } else {
+            0
+        };
+        let scrollh = drawh.saturating_sub(texth).saturating_sub(desch);
 
         let scrollarea = Rect::new(area.x, area.y, area.width, scrollh);
-        let textarea = Rect::new(scrollarea.x, scrollarea.y + scrollh, scrollarea.width, texth);
+        let descarea = Rect::new(area.x, scrollarea.y + scrollh, area.width, desch);
+        let textarea = Rect::new(area.x, descarea.y + desch, area.width, texth);
 
         let scrollback_focused = state.focus.is_scrollback() && self.focused;
         let scrollback = Scrollback::new(self.store).focus(scrollback_focused);
         scrollback.render(scrollarea, buf, &mut state.scrollback);
 
+        let desc_spans = match (&state.editing, &state.reply_to) {
+            (None, None) => None,
+            (Some(_), _) => Some(Spans::from("Editing message")),
+            (_, Some(_)) => {
+                state.reply_to.as_ref().and_then(|k| {
+                    let room = self.store.application.rooms.get(state.id())?;
+                    let msg = room.messages.get(k)?;
+                    let user = self.store.application.settings.get_user_span(msg.sender.as_ref());
+                    let spans = Spans(vec![Span::from("Replying to "), user]);
+
+                    spans.into()
+                })
+            },
+        };
+
+        if let Some(desc_spans) = desc_spans {
+            Paragraph::new(desc_spans).render(descarea, buf);
+        }
+
         let prompt = if self.focused { "> " } else { "  " };
 
         let tbox = TextBox::new().prompt(prompt);

src/windows/room/mod.rs

@@ -1,13 +1,21 @@
-use matrix_sdk::room::Room as MatrixRoom;
+use matrix_sdk::{
-use matrix_sdk::ruma::RoomId;
+    room::{Invited, Room as MatrixRoom},
-use matrix_sdk::DisplayName;
+    ruma::{
+        events::{
+            room::{name::RoomNameEventContent, topic::RoomTopicEventContent},
+            tag::{TagInfo, Tags},
+        },
+        RoomId,
+    },
+    DisplayName,
+};
 
 use modalkit::tui::{
     buffer::Buffer,
-    layout::Rect,
+    layout::{Alignment, Rect},
     style::{Modifier as StyleModifier, Style},
-    text::{Span, Spans},
+    text::{Span, Spans, Text},
-    widgets::StatefulWidget,
+    widgets::{Paragraph, StatefulWidget, Widget},
 };
 
 use modalkit::{
@@ -21,6 +29,7 @@ use modalkit::{
         PromptAction,
         Promptable,
         Scrollable,
+        UIError,
     },
     editing::base::{
         Axis,
@@ -37,13 +46,17 @@ use modalkit::{
 };
 
 use crate::base::{
+    IambError,
     IambId,
     IambInfo,
     IambResult,
+    MessageAction,
     ProgramAction,
     ProgramContext,
     ProgramStore,
     RoomAction,
+    RoomField,
+    SendAction,
 };
 
 use self::chat::ChatState;
@@ -80,10 +93,16 @@ impl From<SpaceState> for RoomState {
 }
 
 impl RoomState {
-    pub fn new(room: MatrixRoom, name: DisplayName, store: &mut ProgramStore) -> Self {
+    pub fn new(
+        room: MatrixRoom,
+        name: DisplayName,
+        tags: Option<Tags>,
+        store: &mut ProgramStore,
+    ) -> Self {
         let room_id = room.room_id().to_owned();
         let info = store.application.get_room_info(room_id);
         info.name = name.to_string().into();
+        info.tags = tags;
 
         if room.is_space() {
             SpaceState::new(room).into()
@@ -92,13 +111,106 @@ impl RoomState {
         }
     }
 
-    pub fn room_command(
+    pub fn refresh_room(&mut self, store: &mut ProgramStore) {
+        match self {
+            RoomState::Chat(chat) => chat.refresh_room(store),
+            RoomState::Space(space) => space.refresh_room(store),
+        }
+    }
+
+    fn draw_invite(
+        &self,
+        invited: Invited,
+        area: Rect,
+        buf: &mut Buffer,
+        store: &mut ProgramStore,
+    ) {
+        let inviter = store.application.worker.get_inviter(invited.clone());
+
+        let name = match invited.canonical_alias() {
+            Some(alias) => alias.to_string(),
+            None => format!("{:?}", store.application.get_room_title(self.id())),
+        };
+
+        let mut invited = vec![Span::from(format!(
+            "You have been invited to join {}",
+            name
+        ))];
+
+        if let Ok(Some(inviter)) = &inviter {
+            invited.push(Span::from(" by "));
+            invited.push(store.application.settings.get_user_span(inviter.user_id()));
+        }
+
+        let l1 = Spans(invited);
+        let l2 = Spans::from(
+            "You can run `:invite accept` or `:invite reject` to accept or reject this invitation.",
+        );
+        let text = Text { lines: vec![l1, l2] };
+
+        Paragraph::new(text).alignment(Alignment::Center).render(area, buf);
+
+        return;
+    }
+
+    pub async fn message_command(
+        &mut self,
+        act: MessageAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Chat(chat) => chat.message_command(act, ctx, store).await,
+            RoomState::Space(_) => Err(IambError::NoSelectedMessage.into()),
+        }
+    }
+
+    pub async fn send_command(
+        &mut self,
+        act: SendAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Chat(chat) => chat.send_command(act, ctx, store).await,
+            RoomState::Space(_) => Err(IambError::NoSelectedRoom.into()),
+        }
+    }
+
+    pub async fn room_command(
         &mut self,
         act: RoomAction,
         _: ProgramContext,
         store: &mut ProgramStore,
     ) -> IambResult<Vec<(Action<IambInfo>, ProgramContext)>> {
         match act {
+            RoomAction::InviteAccept => {
+                if let Some(room) = store.application.worker.client.get_invited_room(self.id()) {
+                    room.accept_invitation().await.map_err(IambError::from)?;
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotInvited.into())
+                }
+            },
+            RoomAction::InviteReject => {
+                if let Some(room) = store.application.worker.client.get_invited_room(self.id()) {
+                    room.reject_invitation().await.map_err(IambError::from)?;
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotInvited.into())
+                }
+            },
+            RoomAction::InviteSend(user) => {
+                if let Some(room) = store.application.worker.client.get_joined_room(self.id()) {
+                    room.invite_user_by_id(user.as_ref()).await.map_err(IambError::from)?;
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotJoined.into())
+                }
+            },
             RoomAction::Members(mut cmd) => {
                 let width = Count::Exact(30);
                 let act =
@@ -109,8 +221,50 @@ impl RoomState {
 
                 Ok(vec![(act, cmd.context.take())])
             },
-            RoomAction::Set(field) => {
+            RoomAction::Set(field, value) => {
-                store.application.worker.set_room(self.id().to_owned(), field)?;
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                match field {
+                    RoomField::Name => {
+                        let ev = RoomNameEventContent::new(value.into());
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Tag(tag) => {
+                        let mut info = TagInfo::new();
+                        info.order = Some(1.0);
+
+                        let _ = room.set_tag(tag, info).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Topic => {
+                        let ev = RoomTopicEventContent::new(value);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                }
+
+                Ok(vec![])
+            },
+            RoomAction::Unset(field) => {
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                match field {
+                    RoomField::Name => {
+                        let ev = RoomNameEventContent::new(None);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Tag(tag) => {
+                        let _ = room.remove_tag(tag).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Topic => {
+                        let ev = RoomTopicEventContent::new("".into());
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                }
 
                 Ok(vec![])
             },
@@ -209,6 +363,14 @@ impl TerminalCursor for RoomState {
 
 impl WindowOps<IambInfo> for RoomState {
     fn draw(&mut self, area: Rect, buf: &mut Buffer, focused: bool, store: &mut ProgramStore) {
+        if let MatrixRoom::Invited(_) = self.room() {
+            self.refresh_room(store);
+        }
+
+        if let MatrixRoom::Invited(invited) = self.room() {
+            self.draw_invite(invited.clone(), area, buf, store);
+        }
+
         match self {
             RoomState::Chat(chat) => chat.draw(area, buf, focused, store),
             RoomState::Space(space) => {

src/windows/room/scrollback.rs

@@ -61,6 +61,7 @@ use modalkit::editing::{
 
 use crate::{
     base::{IambBufferId, IambInfo, ProgramContext, ProgramStore, RoomFocus, RoomInfo},
+    config::ApplicationSettings,
     message::{Message, MessageCursor, MessageKey},
 };
 
@@ -103,11 +104,26 @@ fn nth_after(pos: MessageKey, n: usize, info: &RoomInfo) -> MessageCursor {
 }
 
 pub struct ScrollbackState {
+    /// The room identifier.
     room_id: OwnedRoomId,
+
+    /// The buffer identifier used for saving marks, etc.
     id: IambBufferId,
+
+    /// The currently selected message in the scrollback.
     cursor: MessageCursor,
+
+    /// Contextual info about the viewport used during rendering.
     viewctx: ViewportContext<MessageCursor>,
+
+    /// The jumplist of visited messages.
     jumped: HistoryList<MessageCursor>,
+
+    /// Whether the full message should be drawn during the next render() call.
+    ///
+    /// This is used to ensure that ^E/^Y work nicely when the cursor is currently
+    /// on a multiline message.
+    show_full_on_redraw: bool,
 }
 
 impl ScrollbackState {
@@ -116,8 +132,20 @@ impl ScrollbackState {
         let cursor = MessageCursor::default();
         let viewctx = ViewportContext::default();
         let jumped = HistoryList::default();
+        let show_full_on_redraw = false;
 
-        ScrollbackState { room_id, id, cursor, viewctx, jumped }
+        ScrollbackState {
+            room_id,
+            id,
+            cursor,
+            viewctx,
+            jumped,
+            show_full_on_redraw,
+        }
+    }
+
+    pub fn goto_latest(&mut self) {
+        self.cursor = MessageCursor::latest();
     }
 
     /// Set the dimensions and placement within the terminal window for this list.
@@ -125,6 +153,21 @@ impl ScrollbackState {
         self.viewctx.dimensions = (area.width as usize, area.height as usize);
     }
 
+    pub fn get_key(&self, info: &mut RoomInfo) -> Option<MessageKey> {
+        self.cursor
+            .timestamp
+            .clone()
+            .or_else(|| info.messages.last_key_value().map(|kv| kv.0.clone()))
+    }
+
+    pub fn get_mut<'a>(&mut self, info: &'a mut RoomInfo) -> Option<&'a mut Message> {
+        if let Some(k) = &self.cursor.timestamp {
+            info.messages.get_mut(k)
+        } else {
+            info.messages.last_entry().map(|o| o.into_mut())
+        }
+    }
+
     pub fn messages<'a>(
         &self,
         range: EditRange<MessageCursor>,
@@ -148,7 +191,13 @@ impl ScrollbackState {
         }
     }
 
-    fn scrollview(&mut self, idx: MessageKey, pos: MovePosition, info: &RoomInfo) {
+    fn scrollview(
+        &mut self,
+        idx: MessageKey,
+        pos: MovePosition,
+        info: &RoomInfo,
+        settings: &ApplicationSettings,
+    ) {
         let selidx = if let Some(key) = self.cursor.to_key(info) {
             key
         } else {
@@ -165,7 +214,7 @@ impl ScrollbackState {
 
                 for (key, item) in info.messages.range(..=&idx).rev() {
                     let sel = selidx == key;
-                    let len = item.show(sel, &self.viewctx).lines.len();
+                    let len = item.show(None, sel, &self.viewctx, info, settings).lines.len();
 
                     if key == &idx {
                         lines += len / 2;
@@ -187,7 +236,7 @@ impl ScrollbackState {
 
                 for (key, item) in info.messages.range(..=&idx).rev() {
                     let sel = key == selidx;
-                    let len = item.show(sel, &self.viewctx).lines.len();
+                    let len = item.show(None, sel, &self.viewctx, info, settings).lines.len();
 
                     lines += len;
 
@@ -202,7 +251,7 @@ impl ScrollbackState {
         }
     }
 
-    fn shift_cursor(&mut self, info: &RoomInfo) {
+    fn shift_cursor(&mut self, info: &RoomInfo, settings: &ApplicationSettings) {
         let last_key = if let Some(k) = info.messages.last_key_value() {
             k.0
         } else {
@@ -227,7 +276,7 @@ impl ScrollbackState {
                 break;
             }
 
-            lines += item.show(false, &self.viewctx).height().max(1);
+            lines += item.show(None, false, &self.viewctx, info, settings).height().max(1);
 
             if lines >= self.viewctx.get_height() {
                 // We've reached the end of the viewport; move cursor into it.
@@ -382,7 +431,7 @@ impl ScrollbackState {
                 continue;
             }
 
-            if needle.is_match(msg.as_ref()) {
+            if needle.is_match(msg.event.body().as_ref()) {
                 mc = MessageCursor::from(key.clone()).into();
                 count -= 1;
             }
@@ -406,7 +455,7 @@ impl ScrollbackState {
                 break;
             }
 
-            if needle.is_match(msg.as_ref()) {
+            if needle.is_match(msg.event.body().as_ref()) {
                 mc = MessageCursor::from(key.clone()).into();
                 count -= 1;
             }
@@ -447,6 +496,7 @@ impl WindowOps<IambInfo> for ScrollbackState {
             cursor: self.cursor.clone(),
             viewctx: self.viewctx.clone(),
             jumped: self.jumped.clone(),
+            show_full_on_redraw: false,
         }
     }
 
@@ -567,6 +617,8 @@ impl EditorActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
                     self.cursor = pos;
                 }
 
+                self.show_full_on_redraw = true;
+
                 return Ok(None);
             },
             EditAction::Yank => {
@@ -652,7 +704,7 @@ impl EditorActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
                     let mut yanked = EditRope::from("");
 
                     for (_, msg) in self.messages(range, info) {
-                        yanked += EditRope::from(msg.as_ref());
+                        yanked += EditRope::from(msg.event.body());
                         yanked += EditRope::from('\n');
                     }
 
@@ -930,7 +982,8 @@ impl ScrollActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
         ctx: &ProgramContext,
         store: &mut ProgramStore,
     ) -> EditResult<EditInfo, IambInfo> {
-        let info = store.application.get_room_info(self.room_id.clone());
+        let info = store.application.rooms.entry(self.room_id.clone()).or_default();
+        let settings = &store.application.settings;
         let mut corner = self.viewctx.corner.clone();
 
         let last_key = if let Some(k) = info.messages.last_key_value() {
@@ -956,7 +1009,7 @@ impl ScrollActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
 
                 for (key, item) in info.messages.range(..=&corner_key).rev() {
                     let sel = key == cursor_key;
-                    let txt = item.show(sel, &self.viewctx);
+                    let txt = item.show(None, sel, &self.viewctx, info, settings);
                     let len = txt.height().max(1);
                     let max = len.saturating_sub(1);
 
@@ -982,7 +1035,7 @@ impl ScrollActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
             MoveDir2D::Down => {
                 for (key, item) in info.messages.range(&corner_key..) {
                     let sel = key == cursor_key;
-                    let txt = item.show(sel, &self.viewctx);
+                    let txt = item.show(None, sel, &self.viewctx, info, settings);
                     let len = txt.height().max(1);
                     let max = len.saturating_sub(1);
 
@@ -1018,7 +1071,7 @@ impl ScrollActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
         }
 
         self.viewctx.corner = corner;
-        self.shift_cursor(info);
+        self.shift_cursor(info, settings);
 
         Ok(None)
     }
@@ -1038,10 +1091,11 @@ impl ScrollActions<ProgramContext, ProgramStore, IambInfo> for ScrollbackState {
                 Err(err)
             },
             Axis::Vertical => {
-                let info = store.application.get_room_info(self.room_id.clone());
+                let info = store.application.rooms.entry(self.room_id.clone()).or_default();
+                let settings = &store.application.settings;
 
                 if let Some(key) = self.cursor.to_key(info).cloned() {
-                    self.scrollview(key, pos, info);
+                    self.scrollview(key, pos, info, settings);
                 }
 
                 Ok(None)
@@ -1126,6 +1180,7 @@ impl<'a> StatefulWidget for Scrollback<'a> {
 
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
         let info = self.store.application.rooms.entry(state.room_id.clone()).or_default();
+        let settings = &self.store.application.settings;
         let area = info.render_typing(area, buf, &self.store.application.settings);
 
         state.set_term_info(area);
@@ -1149,21 +1204,28 @@ impl<'a> StatefulWidget for Scrollback<'a> {
         };
 
         let corner = &state.viewctx.corner;
-        let corner_key = match (&corner.timestamp, &cursor.timestamp) {
+        let corner_key = if let Some(k) = &corner.timestamp {
-            (_, None) => nth_key_before(cursor_key.clone(), height, info),
+            k.clone()
-            (None, _) => nth_key_before(cursor_key.clone(), height, info),
+        } else {
-            (Some(k), _) => k.clone(),
+            nth_key_before(cursor_key.clone(), height, info)
         };
 
+        let foc = self.focused || cursor.timestamp.is_some();
+        let full = std::mem::take(&mut state.show_full_on_redraw) || cursor.timestamp.is_none();
         let mut lines = vec![];
         let mut sawit = false;
+        let mut prev = None;
 
         for (key, item) in info.messages.range(&corner_key..) {
             let sel = key == cursor_key;
-            let txt = item.show(self.focused && sel, &state.viewctx);
+            let txt = item.show(prev, foc && sel, &state.viewctx, info, settings);
+
+            prev = Some(item);
+
+            let incomplete_ok = !full || !sel;
 
             for (row, line) in txt.lines.into_iter().enumerate() {
-                if sawit && lines.len() >= height {
+                if sawit && lines.len() >= height && incomplete_ok {
                     // Check whether we've seen the first line of the
                     // selected message and can fill the screen.
                     break;
@@ -1198,7 +1260,13 @@ impl<'a> StatefulWidget for Scrollback<'a> {
             y += 1;
         }
 
-        let first_key = info.messages.first_key_value().map(|f| f.0.clone());
+        if settings.tunables.read_receipt_send && state.cursor.timestamp.is_none() {
+            // If the cursor is at the last message, then update the read marker.
+            info.read_till = info.messages.last_key_value().map(|(k, _)| k.1.clone());
+        }
+
+        // Check whether we should load older messages for this room.
+        let first_key = info.messages.first_key_value().map(|(k, _)| k.clone());
         if first_key == state.viewctx.corner.timestamp {
             // If the top of the screen is the older message, load more.
             self.store.application.mark_for_load(state.room_id.clone());
@@ -1211,10 +1279,10 @@ mod tests {
     use super::*;
     use crate::tests::*;
 
-    #[test]
+    #[tokio::test]
-    fn test_search_messages() {
+    async fn test_search_messages() {
         let room_id = TEST_ROOM1_ID.clone();
-        let mut store = mock_store();
+        let mut store = mock_store().await;
         let mut scrollback = ScrollbackState::new(room_id.clone());
         let ctx = ProgramContext::default();
 
@@ -1255,9 +1323,9 @@ mod tests {
         assert_eq!(scrollback.cursor, MSG1_KEY.clone().into());
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_movement() {
+    async fn test_movement() {
-        let mut store = mock_store();
+        let mut store = mock_store().await;
         let mut scrollback = ScrollbackState::new(TEST_ROOM1_ID.clone());
         let ctx = ProgramContext::default();
 
@@ -1289,9 +1357,9 @@ mod tests {
         assert_eq!(scrollback.cursor, MSG1_KEY.clone().into());
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_dirscroll() {
+    async fn test_dirscroll() {
-        let mut store = mock_store();
+        let mut store = mock_store().await;
         let mut scrollback = ScrollbackState::new(TEST_ROOM1_ID.clone());
         let ctx = ProgramContext::default();
 
@@ -1423,9 +1491,9 @@ mod tests {
         assert_eq!(scrollback.viewctx.corner, MessageCursor::new(MSG3_KEY.clone(), 4));
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_cursorpos() {
+    async fn test_cursorpos() {
-        let mut store = mock_store();
+        let mut store = mock_store().await;
         let mut scrollback = ScrollbackState::new(TEST_ROOM1_ID.clone());
         let ctx = ProgramContext::default();
 

src/windows/room/space.rs

@@ -31,6 +31,12 @@ impl SpaceState {
         SpaceState { room_id, room, list }
     }
 
+    pub fn refresh_room(&mut self, store: &mut ProgramStore) {
+        if let Some(room) = store.application.worker.client.get_room(self.id()) {
+            self.room = room;
+        }
+    }
+
     pub fn room(&self) -> &MatrixRoom {
         &self.room
     }
@@ -88,14 +94,20 @@ impl<'a> StatefulWidget for Space<'a> {
     type State = SpaceState;
 
     fn render(self, area: Rect, buffer: &mut Buffer, state: &mut Self::State) {
-        let members = self.store.application.worker.space_members(state.room_id.clone()).unwrap();
+        let members =
+            if let Ok(m) = self.store.application.worker.space_members(state.room_id.clone()) {
+                m
+            } else {
+                return;
+            };
+
         let items = members
             .into_iter()
             .filter_map(|id| {
-                let (room, name) = self.store.application.worker.get_room(id.clone()).ok()?;
+                let (room, name, tags) = self.store.application.worker.get_room(id.clone()).ok()?;
 
                 if id != state.room_id {
-                    Some(RoomItem::new(room, name, self.store))
+                    Some(RoomItem::new(room, name, tags, self.store))
                 } else {
                     None
                 }

src/worker.rs

@@ -1,12 +1,14 @@
 use std::convert::TryFrom;
+use std::fmt::{Debug, Formatter};
 use std::fs::File;
 use std::io::BufWriter;
 use std::str::FromStr;
-use std::sync::mpsc::{sync_channel, Receiver, RecvTimeoutError, SyncSender};
+use std::sync::mpsc::{sync_channel, Receiver, SyncSender};
 use std::sync::Arc;
 use std::time::Duration;
 
 use gethostname::gethostname;
+use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
 use tokio::task::JoinHandle;
 use tracing::error;
 
@@ -15,7 +17,7 @@ use matrix_sdk::{
     encryption::verification::{SasVerification, Verification},
     event_handler::Ctx,
     reqwest,
-    room::{Messages, MessagesOptions, Room as MatrixRoom, RoomMember},
+    room::{Invited, Messages, MessagesOptions, Room as MatrixRoom, RoomMember},
     ruma::{
         api::client::{
             room::create_room::v3::{Request as CreateRoomRequest, RoomPreset},
@@ -31,20 +33,21 @@ use matrix_sdk::{
                 VerificationMethod,
             },
             room::{
-                message::{MessageType, RoomMessageEventContent, TextMessageEventContent},
+                message::{MessageType, RoomMessageEventContent},
                 name::RoomNameEventContent,
-                topic::RoomTopicEventContent,
+                redaction::{OriginalSyncRoomRedactionEvent, SyncRoomRedactionEvent},
             },
+            tag::Tags,
             typing::SyncTypingEvent,
             AnyMessageLikeEvent,
             AnyTimelineEvent,
             SyncMessageLikeEvent,
             SyncStateEvent,
         },
-        OwnedEventId,
         OwnedRoomId,
         OwnedRoomOrAliasId,
         OwnedUserId,
+        RoomVersionId,
     },
     Client,
     DisplayName,
@@ -54,8 +57,8 @@ use matrix_sdk::{
 use modalkit::editing::action::{EditInfo, InfoMessage, UIError};
 
 use crate::{
-    base::{AsyncProgramStore, IambError, IambResult, SetRoomField, VerifyAction},
+    base::{AsyncProgramStore, IambError, IambResult, Receipts, VerifyAction},
-    message::{Message, MessageFetchResult, MessageTimeStamp},
+    message::MessageFetchResult,
     ApplicationSettings,
 };
 
@@ -67,6 +70,7 @@ fn initial_devname() -> String {
     format!("{} on {}", IAMB_DEVICE_NAME, gethostname().to_string_lossy())
 }
 
+#[derive(Debug)]
 pub enum LoginStyle {
     SessionRestore(Session),
     Password(String),
@@ -95,29 +99,133 @@ fn oneshot<T>() -> (ClientReply<T>, ClientResponse<T>) {
     return (reply, response);
 }
 
-type EchoPair = (OwnedEventId, RoomMessageEventContent);
+async fn update_receipts(client: &Client) -> Vec<(OwnedRoomId, Receipts)> {
+    let mut rooms = vec![];
+
+    for room in client.joined_rooms() {
+        if let Ok(users) = room.active_members_no_sync().await {
+            let mut receipts = Receipts::new();
+
+            for member in users {
+                let res = room.user_read_receipt(member.user_id()).await;
+
+                if let Ok(Some((event_id, _))) = res {
+                    let user_id = member.user_id().to_owned();
+                    receipts.entry(event_id).or_default().push(user_id);
+                }
+            }
+
+            rooms.push((room.room_id().to_owned(), receipts));
+        }
+    }
+
+    return rooms;
+}
+
+pub type FetchedRoom = (MatrixRoom, DisplayName, Option<Tags>);
 
 pub enum WorkerTask {
-    DirectMessages(ClientReply<Vec<(MatrixRoom, DisplayName)>>),
+    ActiveRooms(ClientReply<Vec<FetchedRoom>>),
+    DirectMessages(ClientReply<Vec<FetchedRoom>>),
     Init(AsyncProgramStore, ClientReply<()>),
     LoadOlder(OwnedRoomId, Option<String>, u32, ClientReply<MessageFetchResult>),
     Login(LoginStyle, ClientReply<IambResult<EditInfo>>),
-    GetRoom(OwnedRoomId, ClientReply<IambResult<(MatrixRoom, DisplayName)>>),
+    GetInviter(Invited, ClientReply<IambResult<Option<RoomMember>>>),
+    GetRoom(OwnedRoomId, ClientReply<IambResult<FetchedRoom>>),
     JoinRoom(String, ClientReply<IambResult<OwnedRoomId>>),
-    JoinedRooms(ClientReply<Vec<(MatrixRoom, DisplayName)>>),
     Members(OwnedRoomId, ClientReply<IambResult<Vec<RoomMember>>>),
     SpaceMembers(OwnedRoomId, ClientReply<IambResult<Vec<OwnedRoomId>>>),
     Spaces(ClientReply<Vec<(MatrixRoom, DisplayName)>>),
-    SendMessage(OwnedRoomId, String, ClientReply<IambResult<EchoPair>>),
-    SetRoom(OwnedRoomId, SetRoomField, ClientReply<IambResult<()>>),
     TypingNotice(OwnedRoomId),
     Verify(VerifyAction, SasVerification, ClientReply<IambResult<EditInfo>>),
     VerifyRequest(OwnedUserId, ClientReply<IambResult<EditInfo>>),
 }
 
+impl Debug for WorkerTask {
+    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), std::fmt::Error> {
+        match self {
+            WorkerTask::ActiveRooms(_) => {
+                f.debug_tuple("WorkerTask::ActiveRooms").field(&format_args!("_")).finish()
+            },
+            WorkerTask::DirectMessages(_) => {
+                f.debug_tuple("WorkerTask::DirectMessages")
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::Init(_, _) => {
+                f.debug_tuple("WorkerTask::Init")
+                    .field(&format_args!("_"))
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::LoadOlder(room_id, from, n, _) => {
+                f.debug_tuple("WorkerTask::LoadOlder")
+                    .field(room_id)
+                    .field(from)
+                    .field(n)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::Login(style, _) => {
+                f.debug_tuple("WorkerTask::Login")
+                    .field(style)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::GetInviter(invite, _) => {
+                f.debug_tuple("WorkerTask::GetInviter").field(invite).finish()
+            },
+            WorkerTask::GetRoom(room_id, _) => {
+                f.debug_tuple("WorkerTask::GetRoom")
+                    .field(room_id)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::JoinRoom(s, _) => {
+                f.debug_tuple("WorkerTask::JoinRoom")
+                    .field(s)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::Members(room_id, _) => {
+                f.debug_tuple("WorkerTask::Members")
+                    .field(room_id)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::SpaceMembers(room_id, _) => {
+                f.debug_tuple("WorkerTask::SpaceMembers")
+                    .field(room_id)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::Spaces(_) => {
+                f.debug_tuple("WorkerTask::Spaces").field(&format_args!("_")).finish()
+            },
+            WorkerTask::TypingNotice(room_id) => {
+                f.debug_tuple("WorkerTask::TypingNotice").field(room_id).finish()
+            },
+            WorkerTask::Verify(act, sasv1, _) => {
+                f.debug_tuple("WorkerTask::Verify")
+                    .field(act)
+                    .field(sasv1)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+            WorkerTask::VerifyRequest(user_id, _) => {
+                f.debug_tuple("WorkerTask::VerifyRequest")
+                    .field(user_id)
+                    .field(&format_args!("_"))
+                    .finish()
+            },
+        }
+    }
+}
+
 #[derive(Clone)]
 pub struct Requester {
-    pub tx: SyncSender<WorkerTask>,
+    pub client: Client,
+    pub tx: UnboundedSender<WorkerTask>,
 }
 
 impl Requester {
@@ -152,15 +260,7 @@ impl Requester {
         return response.recv();
     }
 
-    pub fn send_message(&self, room_id: OwnedRoomId, msg: String) -> IambResult<EchoPair> {
+    pub fn direct_messages(&self) -> Vec<FetchedRoom> {
-        let (reply, response) = oneshot();
-
-        self.tx.send(WorkerTask::SendMessage(room_id, msg, reply)).unwrap();
-
-        return response.recv();
-    }
-
-    pub fn direct_messages(&self) -> Vec<(MatrixRoom, DisplayName)> {
         let (reply, response) = oneshot();
 
         self.tx.send(WorkerTask::DirectMessages(reply)).unwrap();
@@ -168,7 +268,15 @@ impl Requester {
         return response.recv();
     }
 
-    pub fn get_room(&self, room_id: OwnedRoomId) -> IambResult<(MatrixRoom, DisplayName)> {
+    pub fn get_inviter(&self, invite: Invited) -> IambResult<Option<RoomMember>> {
+        let (reply, response) = oneshot();
+
+        self.tx.send(WorkerTask::GetInviter(invite, reply)).unwrap();
+
+        return response.recv();
+    }
+
+    pub fn get_room(&self, room_id: OwnedRoomId) -> IambResult<FetchedRoom> {
         let (reply, response) = oneshot();
 
         self.tx.send(WorkerTask::GetRoom(room_id, reply)).unwrap();
@@ -184,10 +292,10 @@ impl Requester {
         return response.recv();
     }
 
-    pub fn joined_rooms(&self) -> Vec<(MatrixRoom, DisplayName)> {
+    pub fn active_rooms(&self) -> Vec<FetchedRoom> {
         let (reply, response) = oneshot();
 
-        self.tx.send(WorkerTask::JoinedRooms(reply)).unwrap();
+        self.tx.send(WorkerTask::ActiveRooms(reply)).unwrap();
 
         return response.recv();
     }
@@ -208,14 +316,6 @@ impl Requester {
         return response.recv();
     }
 
-    pub fn set_room(&self, room_id: OwnedRoomId, ev: SetRoomField) -> IambResult<()> {
-        let (reply, response) = oneshot();
-
-        self.tx.send(WorkerTask::SetRoom(room_id, ev, reply)).unwrap();
-
-        return response.recv();
-    }
-
     pub fn spaces(&self) -> Vec<(MatrixRoom, DisplayName)> {
         let (reply, response) = oneshot();
 
@@ -253,10 +353,8 @@ pub struct ClientWorker {
 }
 
 impl ClientWorker {
-    pub fn spawn(settings: ApplicationSettings) -> Requester {
+    pub async fn spawn(settings: ApplicationSettings) -> Requester {
-        let (tx, rx) = sync_channel(5);
+        let (tx, rx) = unbounded_channel();
-
-        let _ = tokio::spawn(async move {
         let account = &settings.profile;
 
         // Set up a custom client that only uses HTTP/1.
@@ -265,9 +363,10 @@ impl ClientWorker {
         // will need to be revisited in the future.
         let http = reqwest::Client::builder()
             .user_agent(IAMB_USER_AGENT)
-                .timeout(Duration::from_secs(60))
+            .timeout(Duration::from_secs(30))
-                .pool_idle_timeout(Duration::from_secs(120))
+            .pool_idle_timeout(Duration::from_secs(60))
-                .pool_max_idle_per_host(5)
+            .pool_max_idle_per_host(10)
+            .tcp_keepalive(Duration::from_secs(10))
             .http1_only()
             .build()
             .unwrap();
@@ -279,9 +378,7 @@ impl ClientWorker {
             .store_config(StoreConfig::default())
             .sled_store(settings.matrix_dir.as_path(), None)
             .expect("Failed to setup up sled store for Matrix SDK")
-                .request_config(
+            .request_config(RequestConfig::new().timeout(REQ_TIMEOUT).retry_timeout(REQ_TIMEOUT))
-                    RequestConfig::new().timeout(REQ_TIMEOUT).retry_timeout(REQ_TIMEOUT),
-                )
             .build()
             .await
             .expect("Failed to instantiate Matrix client");
@@ -289,24 +386,24 @@ impl ClientWorker {
         let mut worker = ClientWorker {
             initialized: false,
             settings,
-                client,
+            client: client.clone(),
             sync_handle: None,
         };
 
+        let _ = tokio::spawn(async move {
             worker.work(rx).await;
         });
 
-        return Requester { tx };
+        return Requester { client, tx };
     }
 
-    async fn work(&mut self, rx: Receiver<WorkerTask>) {
+    async fn work(&mut self, mut rx: UnboundedReceiver<WorkerTask>) {
         loop {
-            let t = rx.recv_timeout(Duration::from_secs(1));
+            let t = rx.recv().await;
 
             match t {
-                Ok(task) => self.run(task).await,
+                Some(task) => self.run(task).await,
-                Err(RecvTimeoutError::Timeout) => {},
+                None => {
-                Err(RecvTimeoutError::Disconnected) => {
                     break;
                 },
             }
@@ -332,13 +429,17 @@ impl ClientWorker {
                 assert!(self.initialized);
                 reply.send(self.join_room(room_id).await);
             },
+            WorkerTask::GetInviter(invited, reply) => {
+                assert!(self.initialized);
+                reply.send(self.get_inviter(invited).await);
+            },
             WorkerTask::GetRoom(room_id, reply) => {
                 assert!(self.initialized);
                 reply.send(self.get_room(room_id).await);
             },
-            WorkerTask::JoinedRooms(reply) => {
+            WorkerTask::ActiveRooms(reply) => {
                 assert!(self.initialized);
-                reply.send(self.joined_rooms().await);
+                reply.send(self.active_rooms().await);
             },
             WorkerTask::LoadOlder(room_id, fetch_id, limit, reply) => {
                 assert!(self.initialized);
@@ -352,10 +453,6 @@ impl ClientWorker {
                 assert!(self.initialized);
                 reply.send(self.members(room_id).await);
             },
-            WorkerTask::SetRoom(room_id, field, reply) => {
-                assert!(self.initialized);
-                reply.send(self.set_room(room_id, field).await);
-            },
             WorkerTask::SpaceMembers(space, reply) => {
                 assert!(self.initialized);
                 reply.send(self.space_members(space).await);
@@ -364,10 +461,6 @@ impl ClientWorker {
                 assert!(self.initialized);
                 reply.send(self.spaces().await);
             },
-            WorkerTask::SendMessage(room_id, msg, reply) => {
-                assert!(self.initialized);
-                reply.send(self.send_message(room_id, msg).await);
-            },
             WorkerTask::TypingNotice(room_id) => {
                 assert!(self.initialized);
                 self.typing_notice(room_id).await;
@@ -384,7 +477,7 @@ impl ClientWorker {
     }
 
     async fn init(&mut self, store: AsyncProgramStore) {
-        self.client.add_event_handler_context(store);
+        self.client.add_event_handler_context(store.clone());
 
         let _ = self.client.add_event_handler(
             |ev: SyncTypingEvent, room: MatrixRoom, store: Ctx<AsyncProgramStore>| {
@@ -448,15 +541,33 @@ impl ClientWorker {
                     let mut locked = store.lock().await;
                     let mut info = locked.application.get_room_info(room_id.to_owned());
                     info.name = room_name;
+                    info.insert(ev.into_full_event(room_id.to_owned()));
+                }
+            },
+        );
 
-                    let event_id = ev.event_id().to_owned();
+        let _ = self.client.add_event_handler(
-                    let key = (ev.origin_server_ts().into(), event_id.clone());
+            |ev: OriginalSyncRoomRedactionEvent,
-                    let msg = Message::from(ev.into_full_event(room_id.to_owned()));
+             room: MatrixRoom,
-                    info.messages.insert(key, msg);
+             store: Ctx<AsyncProgramStore>| {
+                async move {
+                    let room_id = room.room_id();
+                    let room_info = room.clone_info();
+                    let room_version = room_info.room_version().unwrap_or(&RoomVersionId::V1);
 
-                    // Remove the echo.
+                    let mut locked = store.lock().await;
-                    let key = (MessageTimeStamp::LocalEcho, event_id);
+                    let info = locked.application.get_room_info(room_id.to_owned());
-                    let _ = info.messages.remove(&key);
+
+                    let key = if let Some(k) = info.keys.get(&ev.redacts) {
+                        k
+                    } else {
+                        return;
+                    };
+
+                    if let Some(msg) = info.messages.get_mut(key) {
+                        let ev = SyncRoomRedactionEvent::Original(ev);
+                        msg.event.redact(ev, room_version);
+                    }
                 }
             },
         );
@@ -573,6 +684,19 @@ impl ClientWorker {
             },
         );
 
+        let client = self.client.clone();
+        let _ = tokio::spawn(async move {
+            // Update the displayed read receipts ever 5 seconds.
+            let mut interval = tokio::time::interval(Duration::from_secs(5));
+
+            loop {
+                interval.tick().await;
+
+                let receipts = update_receipts(&client).await;
+                store.lock().await.application.set_receipts(receipts).await;
+            }
+        });
+
         self.initialized = true;
     }
 
@@ -615,37 +739,10 @@ impl ClientWorker {
         Ok(Some(InfoMessage::from("Successfully logged in!")))
     }
 
-    async fn send_message(&mut self, room_id: OwnedRoomId, msg: String) -> IambResult<EchoPair> {
+    async fn direct_message(&mut self, user: OwnedUserId) -> IambResult<FetchedRoom> {
-        let room = if let r @ Some(_) = self.client.get_joined_room(&room_id) {
+        for (room, name, tags) in self.direct_messages().await {
-            r
-        } else if self.client.join_room_by_id(&room_id).await.is_ok() {
-            self.client.get_joined_room(&room_id)
-        } else {
-            None
-        };
-
-        if let Some(room) = room {
-            let msg = TextMessageEventContent::plain(msg);
-            let msg = MessageType::Text(msg);
-            let msg = RoomMessageEventContent::new(msg);
-
-            // XXX: second parameter can be a locally unique transaction id.
-            // Useful for doing retries.
-            let resp = room.send(msg.clone(), None).await.map_err(IambError::from)?;
-            let event_id = resp.event_id;
-
-            // XXX: need to either give error messages and retry when needed!
-
-            return Ok((event_id, msg));
-        } else {
-            Err(IambError::UnknownRoom(room_id).into())
-        }
-    }
-
-    async fn direct_message(&mut self, user: OwnedUserId) -> IambResult<(MatrixRoom, DisplayName)> {
-        for (room, name) in self.direct_messages().await {
             if room.get_member(user.as_ref()).await.map_err(IambError::from)?.is_some() {
-                return Ok((room, name));
+                return Ok((room, name, tags));
             }
         }
 
@@ -673,11 +770,18 @@ impl ClientWorker {
         }
     }
 
-    async fn get_room(&mut self, room_id: OwnedRoomId) -> IambResult<(MatrixRoom, DisplayName)> {
+    async fn get_inviter(&mut self, invited: Invited) -> IambResult<Option<RoomMember>> {
+        let details = invited.invite_details().await.map_err(IambError::from)?;
+
+        Ok(details.inviter)
+    }
+
+    async fn get_room(&mut self, room_id: OwnedRoomId) -> IambResult<FetchedRoom> {
         if let Some(room) = self.client.get_room(&room_id) {
             let name = room.display_name().await.map_err(IambError::from)?;
+            let tags = room.tags().await.map_err(IambError::from)?;
 
-            Ok((room, name))
+            Ok((room, name, tags))
         } else {
             Err(IambError::UnknownRoom(room_id).into())
         }
@@ -706,33 +810,57 @@ impl ClientWorker {
         }
     }
 
-    async fn direct_messages(&mut self) -> Vec<(MatrixRoom, DisplayName)> {
+    async fn direct_messages(&self) -> Vec<FetchedRoom> {
         let mut rooms = vec![];
 
-        for room in self.client.joined_rooms().into_iter() {
+        for room in self.client.invited_rooms().into_iter() {
-            if room.is_space() || !room.is_direct() {
+            if !room.is_direct() {
                 continue;
             }
 
-            if let Ok(name) = room.display_name().await {
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
-                rooms.push((MatrixRoom::from(room), name))
+            let tags = room.tags().await.unwrap_or_default();
+
+            rooms.push((room.into(), name, tags));
         }
+
+        for room in self.client.joined_rooms().into_iter() {
+            if !room.is_direct() {
+                continue;
+            }
+
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
+            let tags = room.tags().await.unwrap_or_default();
+
+            rooms.push((room.into(), name, tags));
         }
 
         return rooms;
     }
 
-    async fn joined_rooms(&mut self) -> Vec<(MatrixRoom, DisplayName)> {
+    async fn active_rooms(&self) -> Vec<FetchedRoom> {
         let mut rooms = vec![];
 
+        for room in self.client.invited_rooms().into_iter() {
+            if room.is_space() || room.is_direct() {
+                continue;
+            }
+
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
+            let tags = room.tags().await.unwrap_or_default();
+
+            rooms.push((room.into(), name, tags));
+        }
+
         for room in self.client.joined_rooms().into_iter() {
             if room.is_space() || room.is_direct() {
                 continue;
             }
 
-            if let Ok(name) = room.display_name().await {
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
-                rooms.push((MatrixRoom::from(room), name))
+            let tags = room.tags().await.unwrap_or_default();
-            }
+
+            rooms.push((room.into(), name, tags));
         }
 
         return rooms;
@@ -781,27 +909,6 @@ impl ClientWorker {
         }
     }
 
-    async fn set_room(&mut self, room_id: OwnedRoomId, field: SetRoomField) -> IambResult<()> {
-        let room = if let Some(r) = self.client.get_joined_room(&room_id) {
-            r
-        } else {
-            return Err(IambError::UnknownRoom(room_id).into());
-        };
-
-        match field {
-            SetRoomField::Name(name) => {
-                let ev = RoomNameEventContent::new(name.into());
-                let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
-            },
-            SetRoomField::Topic(topic) => {
-                let ev = RoomTopicEventContent::new(topic);
-                let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
-            },
-        }
-
-        Ok(())
-    }
-
     async fn space_members(&mut self, space: OwnedRoomId) -> IambResult<Vec<OwnedRoomId>> {
         let mut req = SpaceHierarchyRequest::new(&space);
         req.limit = Some(1000u32.into());
@@ -814,17 +921,27 @@ impl ClientWorker {
         Ok(rooms)
     }
 
-    async fn spaces(&mut self) -> Vec<(MatrixRoom, DisplayName)> {
+    async fn spaces(&self) -> Vec<(MatrixRoom, DisplayName)> {
         let mut spaces = vec![];
 
+        for room in self.client.invited_rooms().into_iter() {
+            if !room.is_space() {
+                continue;
+            }
+
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
+
+            spaces.push((room.into(), name));
+        }
+
         for room in self.client.joined_rooms().into_iter() {
             if !room.is_space() {
                 continue;
             }
 
-            if let Ok(name) = room.display_name().await {
+            let name = room.display_name().await.unwrap_or(DisplayName::Empty);
-                spaces.push((MatrixRoom::from(room), name));
+
-            }
+            spaces.push((room.into(), name));
         }
 
         return spaces;